In April 2006, a DC-9 aircraft landed in the port city of Ciudad del Carmen, located 500 miles east of Mexico City. When the plane’s crew began directing security personnel away from the plane, the suspicious activity piqued the curiosity of local law enforcement officials. They decided to search the plane and found 128 suitcases packed with over 56 tons of cocaine. The cocaine was to have been delivered to Toluca, near Mexico City. In investigating the plane and individual involved, law enforcement agents discovered that the plane had been purchased with money that had been laundered through two U.S. banks, Wachovia Corp. and Bank of America Corp. Neither bank was actually aware that the money was being used to purchase a plane that would then be used for drug trafficking. Are the banks still criminally liable for breaking the rules? Explain why or why not. What if the banks were aware of large sums of money being run through particular customers’ accounts? Would that knowledge make a difference?