Marisha Goldhamer
@marishagoldhamer.bsky.social
Head of digital investigation for North America at AFP
Swim mom 🏊🏻♂️
Swim mom 🏊🏻♂️
I wrote this one for the many baseball lovers in my life.
Beware of AI slop as you enjoy the World Series ⚾
Beware of AI slop as you enjoy the World Series ⚾
⚾ Baseball fans are facing an onslaught of phony AI content on Facebook, pushed by a clickbait network in Southeast Asia capitalizing on interest in the lead-up to the sport's World Series, an AFP investigation has found.
➡️ u.afp.com/SsM9
➡️ u.afp.com/SsM9
October 24, 2025 at 11:15 PM
I wrote this one for the many baseball lovers in my life.
Beware of AI slop as you enjoy the World Series ⚾
Beware of AI slop as you enjoy the World Series ⚾
🇺🇸 The Late Show with Stephen Colbert and CNN cited AFP Fact Check's investigation of a video the White House claimed showed "chaos" in Chicago. But Bill McCarthy in Washington, found that the clip is littered with outdated footage from other American cities. Read more: u.afp.com/SsSU
October 17, 2025 at 5:01 PM
Love to see stories from @factcheck.afp.com used as the backbone of these resources. Read the fact check here: factcheck.afp.com/doc.afp.com....
✔️ YES: A video that shows an electric school bus fire in Montreal is genuine.
❌ NO: The video is not evidence that electric school buses are prone to fires or more dangerous than traditional buses. And the fire was not caused by the EV battery.
🔗 RumorGuard post: go.newslit.org/EVschoolbus
❌ NO: The video is not evidence that electric school buses are prone to fires or more dangerous than traditional buses. And the fire was not caused by the EV battery.
🔗 RumorGuard post: go.newslit.org/EVschoolbus
October 17, 2025 at 12:43 AM
Love to see stories from @factcheck.afp.com used as the backbone of these resources. Read the fact check here: factcheck.afp.com/doc.afp.com....
Reposted by Marisha Goldhamer
Our fact-check of the White House's deceptive Chicago video highlighted in CNN's "Reliable Sources" newsletter:
October 16, 2025 at 3:01 PM
Our fact-check of the White House's deceptive Chicago video highlighted in CNN's "Reliable Sources" newsletter:
51 GOP senators asked the FDA to restrict abortion pills. The letter cites a policy paper experts told me overstates the risks of the medication factcheck.afp.com/doc.afp.com....
October 10, 2025 at 12:30 AM
51 GOP senators asked the FDA to restrict abortion pills. The letter cites a policy paper experts told me overstates the risks of the medication factcheck.afp.com/doc.afp.com....
Reposted by Marisha Goldhamer
🌊🌀Five houses just fell -- yet again -- into the ocean in the Outer Banks. Here's my latest on what causes such a dramatic trend on North Carolina's coasts. Yes, it's natural erosion -- and climate change is making it worse. u.afp.com/SWCr
October 1, 2025 at 1:42 PM
🌊🌀Five houses just fell -- yet again -- into the ocean in the Outer Banks. Here's my latest on what causes such a dramatic trend on North Carolina's coasts. Yes, it's natural erosion -- and climate change is making it worse. u.afp.com/SWCr
It's been a busy week for debunking claims about what causes autism.
Gentle reminder that it is not the MMR vaccine factcheck.afp.com/doc.afp.com....
Gentle reminder that it is not the MMR vaccine factcheck.afp.com/doc.afp.com....
September 25, 2025 at 10:13 PM
It's been a busy week for debunking claims about what causes autism.
Gentle reminder that it is not the MMR vaccine factcheck.afp.com/doc.afp.com....
Gentle reminder that it is not the MMR vaccine factcheck.afp.com/doc.afp.com....
Online misinformation does cause offline harm.
Very proud of this story from my colleague Bill McCarthy and thankful to people willing to tell their stories even as they are receiving death threats.
Very proud of this story from my colleague Bill McCarthy and thankful to people willing to tell their stories even as they are receiving death threats.
Two people misidentified online as suspects in the fatal shooting of right-wing US activist Charlie Kirk told me today they were terrified by the misinformation targeting them, as the manhunt for the real killer continued. www.france24.com/en/live-news...
People misidentified as Charlie Kirk's shooter fear retaliation
Two people misidentified online as suspects in the fatal shooting of right-wing US activist Charlie Kirk told AFP Thursday they were terrified by the misinformation targeting them, as the manhunt for…
www.france24.com
September 11, 2025 at 10:31 PM
Online misinformation does cause offline harm.
Very proud of this story from my colleague Bill McCarthy and thankful to people willing to tell their stories even as they are receiving death threats.
Very proud of this story from my colleague Bill McCarthy and thankful to people willing to tell their stories even as they are receiving death threats.
Reposted by Marisha Goldhamer
Trisodium phosphate is a versatile chemical compound that is approved to be added to a variety of foods. Health influencers online regularly uphold it as a "toxic" ingredient because it is also found in industrial cleaning products, but quantity matters u.afp.com/TrisodiumPho...
August 30, 2025 at 12:01 PM
Trisodium phosphate is a versatile chemical compound that is approved to be added to a variety of foods. Health influencers online regularly uphold it as a "toxic" ingredient because it is also found in industrial cleaning products, but quantity matters u.afp.com/TrisodiumPho...
Thanks for including AFP's verification work in Canada in this @dfrlab.bsky.social report
A deepfake video of Canadian Prime Minister Mark Carney went viral on TikTok and X. Despite being labeled, fact-checked, and eventually removed, the claims in the video continued to be amplified, illustrating how AI-generated disinformation persists. dfrlab.org/2025/06/19/d... @dfrlab.bsky.social
Deepfake video of Canadian Prime Minister reaches millions on TikTok, X
Even after removal and debunking, the video’s claims gained traction via high-profile accounts.
dfrlab.org
June 25, 2025 at 4:04 PM
Thanks for including AFP's verification work in Canada in this @dfrlab.bsky.social report
Great impact with this reporting from Bill. Glad to see platforms remove seemingly harmless accounts so they can't be used to spread more nefarious misinformation
NEW:
I uncovered dozens of YouTube and TikTok pages churning out AI-generated messages delivered in the pope’s voice or attributed to him.
YouTube terminated 17 such channels and demonetized six others following our investigation, while TikTok removed 11 accounts.
www.barrons.com/news/ai-gene...
I uncovered dozens of YouTube and TikTok pages churning out AI-generated messages delivered in the pope’s voice or attributed to him.
YouTube terminated 17 such channels and demonetized six others following our investigation, while TikTok removed 11 accounts.
www.barrons.com/news/ai-gene...
AI-generated Pope Sermons Flood YouTube, TikTok
AI-generated videos and audios of Pope Leo XIV are populating rapidly online, racking up views as platforms struggle to police them.
www.barrons.com
June 6, 2025 at 2:56 AM
Great impact with this reporting from Bill. Glad to see platforms remove seemingly harmless accounts so they can't be used to spread more nefarious misinformation
My team at AFP can confirm the MAHA report cites studies that do not exist.
With contributions from @billmccarthy.bsky.social, @manonjacob.bsky.social and Gwen Roley www.france24.com/en/live-news...
With contributions from @billmccarthy.bsky.social, @manonjacob.bsky.social and Gwen Roley www.france24.com/en/live-news...
'Make America Healthy Again' report cites nonexistent studies: authors
At least four of the studies cited in a flagship White House report on children's health do not exist, authors listed in the document told AFP Thursday, casting doubt on the paper outlining Health Sec...
www.france24.com
May 29, 2025 at 4:45 PM
My team at AFP can confirm the MAHA report cites studies that do not exist.
With contributions from @billmccarthy.bsky.social, @manonjacob.bsky.social and Gwen Roley www.france24.com/en/live-news...
With contributions from @billmccarthy.bsky.social, @manonjacob.bsky.social and Gwen Roley www.france24.com/en/live-news...
Great to see AFP Fact Check's work referenced by @dfrlab.bsky.social in this case study from Canada dfrlab.org/2025/05/08/h...
How a misleading viral video fueled a Canadian election fraud hoax
Tracing how a viral hoax falsely linked election workers to ballot box fraud.
dfrlab.org
May 13, 2025 at 1:28 PM
Great to see AFP Fact Check's work referenced by @dfrlab.bsky.social in this case study from Canada dfrlab.org/2025/05/08/h...
A paper questioning the safety of mifepristone is spreading across social media, but women's health experts told me its findings are based on faulty methodology and do not supplant years of studies indicating medical abortion is safe factcheck.afp.com/doc.afp.com....
factcheck.afp.com
May 7, 2025 at 8:53 PM
A paper questioning the safety of mifepristone is spreading across social media, but women's health experts told me its findings are based on faulty methodology and do not supplant years of studies indicating medical abortion is safe factcheck.afp.com/doc.afp.com....
🍁🗳️ Snap elections have been called in Canada and misinformation is already being shared. See something AFP should investigate? Send tips to: factcheckcanada@afp.com
Find our election debunks here: factcheck.afp.com/list/Canadia...
Find our election debunks here: factcheck.afp.com/list/Canadia...
March 27, 2025 at 6:06 PM
🍁🗳️ Snap elections have been called in Canada and misinformation is already being shared. See something AFP should investigate? Send tips to: factcheckcanada@afp.com
Find our election debunks here: factcheck.afp.com/list/Canadia...
Find our election debunks here: factcheck.afp.com/list/Canadia...
Wondering what Trump was referencing when he was talking about finding a social security file listing people older than 150 years old? @billmccarthy.bsky.social looked into that factcheck.afp.com/doc.afp.com....
factcheck.afp.com
March 5, 2025 at 3:16 AM
Wondering what Trump was referencing when he was talking about finding a social security file listing people older than 150 years old? @billmccarthy.bsky.social looked into that factcheck.afp.com/doc.afp.com....
🇨🇦 This meme was used to spread false Canadian foreign aid figures when I fact checked it back in 2018. Readers told us it is circulating again as foreign assistance comes under scrutiny, so we wrote an updated story to let folks know it’s still wrong factcheck.afp.com/doc.afp.com....
factcheck.afp.com
February 14, 2025 at 7:58 PM
🇨🇦 This meme was used to spread false Canadian foreign aid figures when I fact checked it back in 2018. Readers told us it is circulating again as foreign assistance comes under scrutiny, so we wrote an updated story to let folks know it’s still wrong factcheck.afp.com/doc.afp.com....
An open letter to Mark Zuckerberg from the world’s fact-checkers -- including AFP: "We believe the decision to end Meta’s third-party fact-checking program is a step backward for those who want to see an internet that prioritizes accurate and trustworthy information" www.poynter.org/ifcn/2025/an...
An open letter to Mark Zuckerberg from the world’s fact-checkers, nine years later - Poynter
From person-to-person coaching and intensive hands-on seminars to interactive online courses and media reporting, Poynter helps journalists sharpen skills and elevate storytelling throughout their car...
www.poynter.org
January 10, 2025 at 6:17 PM
An open letter to Mark Zuckerberg from the world’s fact-checkers -- including AFP: "We believe the decision to end Meta’s third-party fact-checking program is a step backward for those who want to see an internet that prioritizes accurate and trustworthy information" www.poynter.org/ifcn/2025/an...
Reposted by Marisha Goldhamer
🗣️ Our full statement in response to Meta ending its third-party fact checking programme in the US: fullfact.org/blog/2025/ja...
January 7, 2025 at 4:50 PM
🗣️ Our full statement in response to Meta ending its third-party fact checking programme in the US: fullfact.org/blog/2025/ja...
Reposted by Marisha Goldhamer
NEW:
A man who filmed a drone in New Jersey posted an edit of his video, adding CGI gunshots to apparently make a point on what could happen if officials did not act.
Then the fake spread out of context across social media, seemingly reaching Joe Rogan this week.
factcheck.afp.com/doc.afp.com....
A man who filmed a drone in New Jersey posted an edit of his video, adding CGI gunshots to apparently make a point on what could happen if officials did not act.
Then the fake spread out of context across social media, seemingly reaching Joe Rogan this week.
factcheck.afp.com/doc.afp.com....
December 19, 2024 at 6:16 PM
NEW:
A man who filmed a drone in New Jersey posted an edit of his video, adding CGI gunshots to apparently make a point on what could happen if officials did not act.
Then the fake spread out of context across social media, seemingly reaching Joe Rogan this week.
factcheck.afp.com/doc.afp.com....
A man who filmed a drone in New Jersey posted an edit of his video, adding CGI gunshots to apparently make a point on what could happen if officials did not act.
Then the fake spread out of context across social media, seemingly reaching Joe Rogan this week.
factcheck.afp.com/doc.afp.com....
Posts connecting chronic ear infections to vaccination are not backed by evidence. Exposure to germs at day care/school or to secondhand smoke are risk factors. Bottle feeding in bed has been linked to ear infections, while breastfeeding has been shown to reduce the risk u.afp.com/earinfections
December 10, 2024 at 10:15 PM
Posts connecting chronic ear infections to vaccination are not backed by evidence. Exposure to germs at day care/school or to secondhand smoke are risk factors. Bottle feeding in bed has been linked to ear infections, while breastfeeding has been shown to reduce the risk u.afp.com/earinfections
This is a must read from @alexboyd.bsky.social
Especially since the convoy in Ottawa caught global attention, misinformation about Canada has originated or been amplified on Tenet Media shows
Especially since the convoy in Ottawa caught global attention, misinformation about Canada has originated or been amplified on Tenet Media shows
How far-right influencers are weaponizing Canada as a warning to Americans — and why it’s also changing the way we see ourselves.
Right-wing influencers often present a distorted version of Canada that sloshes back into the real-world, possibly shifting Canadians’ views of their own country.
Right-wing influencers often present a distorted version of Canada that sloshes back into the real-world, possibly shifting Canadians’ views of their own country.
How far-right influencers are weaponizing Canada as a warning to Americans — and why it’s also changing the way we see ourselves
Right-wing influencers often present a distorted version of Canada that sloshes back into the real-world, possibly shifting Canadians' views of their own country.
www.thestar.com
December 10, 2024 at 2:57 AM
This is a must read from @alexboyd.bsky.social
Especially since the convoy in Ottawa caught global attention, misinformation about Canada has originated or been amplified on Tenet Media shows
Especially since the convoy in Ottawa caught global attention, misinformation about Canada has originated or been amplified on Tenet Media shows
Reposted by Marisha Goldhamer
With a manhunt still underway after UnitedHealthcare's CEO was shot down yesterday, some of the most viral posts on X are baselessly suggesting Democrats such as Nancy Pelosi or Tim Walz were behind it.
A reminder to beware conspiracy theories that thrive in information vacuums after crisis events.
A reminder to beware conspiracy theories that thrive in information vacuums after crisis events.
December 5, 2024 at 6:38 PM
With a manhunt still underway after UnitedHealthcare's CEO was shot down yesterday, some of the most viral posts on X are baselessly suggesting Democrats such as Nancy Pelosi or Tim Walz were behind it.
A reminder to beware conspiracy theories that thrive in information vacuums after crisis events.
A reminder to beware conspiracy theories that thrive in information vacuums after crisis events.
Experts say RSV vaccines were rigorously tested and there are proven benefits for high risk populations factcheck.afp.com/doc.afp.com....
factcheck.afp.com
November 26, 2024 at 3:31 PM
Experts say RSV vaccines were rigorously tested and there are proven benefits for high risk populations factcheck.afp.com/doc.afp.com....
Nice to virtually meet you Bluesky 👋
I am journalist working to combat misinformation in Canada and the US. Follow for my work and highlights from my team at AFP.
See a post you want fact-checked? Please reach out!
I am journalist working to combat misinformation in Canada and the US. Follow for my work and highlights from my team at AFP.
See a post you want fact-checked? Please reach out!
November 26, 2024 at 3:21 PM
Nice to virtually meet you Bluesky 👋
I am journalist working to combat misinformation in Canada and the US. Follow for my work and highlights from my team at AFP.
See a post you want fact-checked? Please reach out!
I am journalist working to combat misinformation in Canada and the US. Follow for my work and highlights from my team at AFP.
See a post you want fact-checked? Please reach out!