U.S.-Mexico drug war partnership under Calderon broke new ground

The president, who steps down Saturday, essentially rewrote the rules under which foreign countries can intervene in Mexico.

MEXICO CITY — In the six years of outgoing President Felipe Calderon’s war against drug gangs, the U.S. became a principal player in Mexico, sending drones and sniffer dogs, police trainers and intelligence age…

Read more about U.S.-Mexico drug war partnership under Calderon broke new ground