Garry Trudeau was inarguably the most famous person in the room Friday. But the man behind the long-running comic strip "Doonesbury" said he felt a little chagrined as he stood before about 400 Vietnam veterans and their spouses. "It's humbling to receive an award for storytelling in a room of people so filled with stories," the Pulitzer Prize-winning cartoonist said. Trudeau was in Tucson to accept the President's Award for Excellence in the Arts from the Vietnam Veterans of America at the group's national conference, held this week at the Hilton El Conquistador Hotel, 10000 N. Oracle Road.