The total amount of marijuana seized by the DEA nearly doubled from 1,539 metric tons in 2008 to 2,980 metric tons in 2009, according to numbers disclosed by the DEA as part of their budget request for 2011. Meanwhile, the cultivation of marijuana in Mexico rose 35% in 2008 to nearly 30,000 acres, according to a report released by the U.S. State Department. These latest numbers confirm that the only thing an increase in the amount of marijuana seizures by the DEA will do is force more marijuana to…