Barack Obama, the US president, has reiterated his administration's support for Mexico's fight against drug traffickers in a phone call to its president.<br /><br />Violence along the US-Mexico border has skyrocketed since Felipe Calderon, the president of Mexico, sent government troops to confront the drug cartels.<br /><br />Now there is a growing feeling that the military strategy has been counter-productive.<br /><br />Al Jazeera's Mariana Sanchez reports.<br /><br />March 23, 2010
