People walk through a cross-border tunnel in Tijuana, Mexico November 7, 2009. The unfinished tunnel with electricity and a ventilation system, is 10 m deep, 122 m long and was missing only 143 m to reach California, according to local authorities. Reuters Pictures logo Reuters Pictures 27 months ago

People walk through a cross-border tunnel in Tijuana, Mexico November 7, 2009. The unfinished tunnel with electricity and a ventilation system, is 10 m deep, 122 m long and was missing only 143 m to reach California, according to local authorities.