Mexico's government is showing no signs of winning its war against the drug gangs.<br /><br />It has cost at least 28,000 lives since Felipe Calderon, the president, took power less than four years ago, and the numbers keep rising.<br /><br />Al Jazeera's Mariana Sanchez joined police on patrol in Ciudad Juarez, one of Mexico's most violent cities, where one emergency call follows another.
