U.S. watching piracy increase off Somalia, sees ties to famine

U.S. Defense Secretary James Mattis boards a U.S. Air Force C-17 for a day trip to a U.S. military base in Djibouti from Doha, Qatar April 23, 2017. REUTERS/Jonathan Ernst

U.S. Defense Secretary James Mattis boards a U.S. Air Force C-17 for a day trip to a U.S. military base in Djibouti from Doha, Qatar April 23, 2017. REUTERS/Jonathan Ernst