David Johnston, governor general of Canada, talks with Royal Canadian Mounted Police Corporal Jay Schooley and Rear Adm. Fred Midgette, commander Coast Guard Ninth District, during a Shiprider demonstration on the Detroit River near downtown Detroit, April 30, 2015. Shiprider is a program that enables specially-trained officials, from both Canada and the United States, to pursue or interdict suspected criminals transiting across the shared maritime border. (U.S. Coast Guard photo by Petty Officer 2nd Class Levi Read)