There's a lot of peer pressure to not do positive stories out of Iraq... I think there's a sense that the administration got a pass during the hot days of war and now that the war is over it's time to even out the deck somewhat.
Peer pressure and social norms are powerful influences on behaviour, and they are classic excuses.
Positive thinking will let you do everything better than negative thinking will.
Pressure is playing for ten dollars when you don't have a dime in your pocket.