A Mexican marine patrols near the U.S.-Mexico border wall in Tijuana, Mexico, on March 18, 2009. The administration of President Obama is preparing to send federal agents to the U.S.-Mexico border as reinforcements in the fight against Mexican drug cartels. The Obama administration is preparing to send federal agents to the US-Mexico border as reinforcements in the fight against Mexican drug cartels. (Associated Press)

Photo by: Guillermo Arias

A Mexican marine patrols near the U.S.-Mexico border wall in Tijuana, Mexico, on March 18, 2009. The administration of President Obama is preparing to send federal agents to the U.S.-Mexico border as reinforcements in the fight against Mexican drug cartels. The Obama administration is preparing to send federal agents to the US-Mexico border as reinforcements in the fight against Mexican drug cartels. (Associated Press)