A Mexican soldier stands guard as bundles of seized marijuana are incinerated at a military base in Tijuana, Mexico, on Wednesday, Oct. 20, 2010. Authorities carried out the biggest marijuana bust in Mexico's history this week when approximately 134 tons of marijuana headed for the U.S. were confiscated by soldiers and police. Mexico has impounded more than 7,400 tons of marijuana this year as part of President Felipe Calderon's fight against drug cartels. Photographer: David Maung/Bloomberg via Getty Images
