"Federal authorities have arrested and charged four people with drug trafficking after a months-long investigation uncovered what federal officials called a massive, 2,000-foot-long underground tunnel connecting Mexico to the U.S. CBS News' Shanelle Kaul has the details."
"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."
"Authorities said they found a "sophisticated" cross-border tunnel under a fake store in San Diego used to smuggle drugs from Mexico after a monthslong Homeland Security investigation. Four suspects have been charged in the operation and authorities seized more than a ton of cocaine with an estimated value of $45 million."