Smugglers dumped at least 10 tons of marijuana in the Pacific Ocean off the coast of Mexico after they were spotted by troops on an aircraft carrier, reports the San Diego Union-Tribune. Starboard lookouts on the USS Nimitz carrier watched two suspicious boats as sailors started dumping black plastic bags in the water when helicopter crews flew in for a closer look. The boats sped off after dumping their loads and no arrests were made, but crews from the American carrier and the Mexican Navy hauled in 186 bales of marijuana. (More marijuana stories.)