I'm really not sure what her agenda is, what she hopes to tell the President when she would meet with him for the second time. Obviously complete withdrawl from Iraq at this point would be almost as foolish as the initial invasion. Right now the only people entering the military are the poorest Americans who have few other choices. It is right to pay attention to people like Sheehan. It is not right to shield ourselves from the human costs of the Iraq junta.
I remember how the people who marketed this war (yes there was a marketing campaign) sold it as a gleeful escapade in the desert. Our fancy equipment would do all the hard work. We have the biggest and smartest bombs and Bradley fighting tanks (how many thousands of times did Fox news mention those?). It turns out, as many people including myself predicted, that MOAB bombs are completely useless at stopping suicide bombers from entering troop mess tents and detonating themselves. Smart missles turned out to be not so smart, 0 of 50 targets hit.
Most polls now have support for the Iraq war below 50%. If there were an equitable lottery draft that pulled people from all walks of life to serve and die I imagine that number would drop below 25%. Our goals for the country have been scaled back to apparently not even including democratic rule
http://www.tfproject.org/tfp/showthread.php?t=93378 . The choices seem to have been whiddled down to a dictatorship *cough* (ala Saddam Hussein), or three autonomous states *cough* (civil war).