Good question…

…from someone vested in the answer.

“First it was weapons of mass destruction. Then when there were none, it was that we had to find Saddam. We did that, but then it was that we had to put him on trial,” said Spc. Thomas Sheck, 25, who is on his second tour in Iraq. “So now, what will be the next story they tell us to keep us over here?”

Hat tip to The Carpetbagger Report.