Cocaine appears to be making a comeback in the United States, and Coast Guard patrols are used to finding bales of the white powder floating on the surface of the sea or hidden in small boats or even homemade submarines. But what the crew of the cutter Thetis encountered in the eastern Pacific during a two-month mission was a surprise: a sea turtle trapped by the contraband. Commander Jose Diaz told NBC News that a military plane spotted the debris field and his team moved in to inspect.