The government shutdown has grounded the Blue Angels from its crowd-pleasing. stunt-filled airshow at San Francisco's Fleet Week this weekend. But Fleet Week organizers said Wednesday that Royal Canadian pilots and Colombian sailors will be on hand to make sure the show goes on. The Royal Canadian Air Force's Snowbirds will headline the air show this weekend instead of the U.S. Navy Blue Angels. The three-masted ARC Gloria and official flagship of the Colombian Navy will arrive at the Port of San Francisco Thursday. Fleet Week was started in 1981 by the late U.S. Sen. Dianne Feinstein. It's a civic celebration of those who serve in the armed forces.