Chief Petty Officer William Porter, lead dog handler at Marine Safety and Security Team 91101 Seattle, plays fetch with Crema, a yellow Labrador explosives detection canine, as they conclude a day of vehicle sweeps with some invigorating exercise at Coast Guard Base Seattle, April 8, 2015. One year after 9/11, the Coast Guard re-established the canine program, changing from the original sentry and patrol missions of 50 years prior, to a focus on explosives detection. (U.S. Coast Guard photo by Petty Officer 3rd Class Amanda Norcross)
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