US border cops find massive Mexico drug tunnel

An agent from the US Immigration and Customs Enforcement (ICE) stands guard in front of an industrial building near the Mexican border in Otay Mesa, California Nov 3, 2010. [Photo/Agencies]

An agent from the US Immigration and Customs Enforcement (ICE) stands guard in front of an industrial building near the Mexican border in Otay Mesa, California Nov 3, 2010. [Photo/Agencies]