Deciding for yourself is usually a good M.O.
It's getting harder and harder to find an unbiased presentation in any journalism these days. Moore is definitely one of the worst offenders of sensationalizing important issues, but so is Rupert Murdoch. Things being what they are, every corporate journalist has an interest in political outcomes: journalists are being jailed for not giving up their sources, this White House has the worst information record in history...
The way I see it you have 2 choices: absorb all you can and try to peice together some kind of truth, or listen to what only makes you comfortable, ignore everything else and risk finding out that you've been lied to.
That's why I get all my news from South Park.