Obama irritated by Internet photo BURLINGTON, Iowa (AP) -- Barack Obama complained on Wednesday about an Internet photo that claims the Democratic presidential candidate didn't hold his hand over his heart during the Pledge of Allegiance. "This is so irritating," Obama said when asked about the photo in Muscatine, Iowa. The photo, which has circulated widely on the Internet, was taken in September during Iowa Sen. Tom Harkin's annual Democratic fundraiser. A message accompanying the photo claims Obama didn't observe the pledge. Obama said the photo was taken during the singing of the national anthem, not the pledge. "My grandfather...