Slideshow: How Marijuana Is Sent Through the U.S. Mail

More marijuana is now being shipped through the U.S. Mail than in recent years, according to the U.S. Postal Inspection Service, whose seizures of marijuana parcels have increased by more than 400 percent since 2007. Traffickers use everyday objects to conceal the drugs. Here, marijuana is packaged inside "Teasdale" cans of corn. The amount of marijuana matched the weight on the label, and the traffickers used a can sealer. (Courtesy U.S. Postal Inspection Service)