Why is this man smiling?

"That Sheehan woman has gone back to California for a while. Now if the rest of her friends would go home, I could have some peace and quiet, and just get on with my life."

Original photo caption: "President Bush smiles as he arrives at Caterpiller's Aurora facility in Montgomery, Ill., Wednesday, Aug. 10, 2005. With anti-war protesters continuing their vigil outside U.S. President Bush's ranch, the president began a five-day push Saturday, Aug. 20, 2005, to tell the U.S. why he thinks U.S. troops must continue the fight in Iraq." (AP Photo/J. Scott Applewhite)