Soldiers pile up 134 tonnes of marijuana to be incinerated at the military base Morelos in Tijuana, Oct 20, 2010. Soldiers seized the drug on Monday in Mexico's biggest-ever pot haul, the army said. Heavily armed soldiers raided a series of homes in a poor suburb of Tijuana, across the border from San Diego, California, and came under fire at least once as they took the drugs, also arresting 11 suspected traffickers. [Photo/Agencies]