The House Committee was swayed at the last moment by an acoustic analysis from a dictabelt that was later shown to be mistaken. A historian named Sean Munger has two videos thoroughly debunking the common JFK conspiracy claims.

I can't tell if I'm more offended by how evil this administration is or how stupid it is.

I don't get the dismissal of the argument that a scene can be unnecessary. If Terminator included a 15 minute scene of Sarah Connor filing taxes, it would be completely fair to call that a pointless slog that only detracts from the film.