Bill Armstrong, a maintenance engineer with the Canadian Ice Service, prepares to deploy a memorial wreath from the drop chute of a Canadian Ice Service plane over the site where RMS Titanic sank in 1912. The event was a joint-service ceremonial overflight with members of the U.S. Coast Guard International Ice Patrol, April 14, 2012, to commemorate the 100th anniversary of the sinking of the Titanic. (U.S. Coast Guard photo by Petty Officer 1st Class Thomas McKenzie)