Most people do not realize this, but Mexico's equivalent of Navy SEALs - the FES - have proven to be the most effective and corruption-resistant weapon of the Mexican government against the cartels.
These police were likely on a cartel payroll and were tasked with the assassination of this Navy Captain.
The officer probably thought that the cartel would not attack the diplomatic vehicle.
6 posted on 08/28/2012 12:07:53 PM PDT by wideawake