I think it's a decent idea, actually -- you know it looks terrible when some Congressman from who-knows-where comes on and says things that aren't historically accurate, while other members look on in horror.

It wouldn't be too much to ask, and it would certainly avoid faux-pas like Congressmen claiming America's never lost a war or something, which is of course offensive to the veterans of those wars as well as anyone who actually cares about the history of the United States.