LOS ANGELES - A Port Security Unit 311 member reads while enroute to San Clemente Island, Calif., aboard a U.S. Air Force Reserve Command C-17 during Exercise Patriot Hook, March 15, 2012. During Patriot Hook, an exercise simulating a joint force response to a natural disaster, PSU members successfully tested their ability to mobilize within 96 hours and establish sustained operations within 24 hours. U.S. Coast Guard photo by Petty Officer 2nd Class Michael Anderson.