Petty Officer 1st Class Christopher Hartman, from the

Petty Officer 1st Class Christopher Hartman, from the Maritime Safety and Security Team San Francisco, assists a TSA agent and his K-9 partner during a exercise on Coast Guard Island in Alameda, Calif., with the MH-65 Dolphin Helicopter, July 24, 2013. The MSST works with various law enforcement agencies in order to better train the K-9 units. U.S. Coast Guard photo by Seaman Erika Lindquist