<human>: Condense the text into a few key points

Today, my boss (a Vietnam Veteran) gave us an education on how Jane Fonda was a traitor who got American POWs killed when she passed notes they gave to her to their captors. Snopes has a thorough refutation of this commonly forwarded email tale.

He also talks about how John Kerry is disgraceful, yet he worships GW Bush (despite the fact that Bush, Cheney, Rumsfeld, et al never served in the military, while John Kerry was actually in Vietnam).

My boss is a nice guy in general; he just sometimes goes on these condescending rants where he claims to know the truth and feels the need to share it with the rest of us, like he's doing us a favor. Some people here are politically unaware, and take what he says as factual. It burns me up to hear him telling blatant lies, but I don't think it's my place to challenge him at work.
<bot>: My boss spreads conservative propaganda and it's awful to listen to. Should I say something or just keep my mouth shut when he does this?