https://www.youtube.com/watch?v=IQVKmqqk-TQ The national security cutter Stratton made history last month when it intercepted a South American narco-submarine packed with more than 12,000 pounds of cocaine, the service’s biggest bust to date. On Monday the crew stopped in San Diego to offload that haul — and another 28 tons of cocaine nabbed in over 23 seizures on its latest patrol — totaling a $1 billion street value, according to the service. Commandant Adm. Paul Zukunft greeted the crew on the pier for the drop, part of a San Diego layover before the crew returns home to Alameda, California. Stratton’s patrol was part of…