David Johnston, governor general of Canada, gives remarks concerning the Shiprider program to Coast Guard members and Canadian law enforcement officials at Coast Guard Sector 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)