Last week , police in Mexicali found a cannon made from a large tube in the back of an abandoned Dodge Ram pickup truck , said spokesman Edgar Lopez . Police in Mexico find a cannon attached to a compressor on an old pickup truck . Cannon was apparently used to carry bags of drugs over the border , authorities say . In a separate incident last year , FBI agents found cans of marijuana plopped in an Arizona field . Cannon is likely to have been involved in that incident , too , U.S. agent says .
Police in Mexico find a cannon attached to a compressor on an old pickup truck . Cannon was apparently used to carry bags of drugs over the border , authorities say . In a separate incident last year , FBI agents found cans of marijuana plopped in an Arizona field . Cannon is likely to have been involved in that incident , too , U.S. agent says .