Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Drug Tunnel Discovered Under US-Mexico Border VOA News 27 November 2010 In this photo released by U.S. Immigration and Customs Enforcement (ICE), a San Diego Tunnel Task Force agent crouches inside a cross-border tunnel that authorities say was used as an underground drug passage, in San Diego, California, 26 Nov 2010 Photo: AP/U.S. Immigration and Customs Enforcement A San Diego Tunnel Task Force agent crouches inside a cross-border tunnel that authorities say was used as an underground drug passage, in San Diego, California, 26 Nov 2010 U.S. authorities say a sophisticated cross-border drug tunnel has been discovered under the U.S.-Mexico border, and more than 20 tons of marijuana have been seized, in the second major drug bust of its kind this month. Immigration and customs enforcement officials say the nearly