Video shows massive drug-smuggling tunnel connecting U.S. and Mexico

Four people were arrested and charged with trafficking more than $45 million in cocaine through the 2,000-foot-long tunnel complete with reinforced walls, ventilation and a rail system.

Four people were arrested and charged with trafficking more than $45 million in cocaine through the 2,000-foot-long tunnel complete with reinforced walls, ventilation and a rail system.

Four people were arrested and charged with trafficking more than $45 million in cocaine through the 2,000-foot-long tunnel complete with reinforced walls, ventilation and a rail system.