Michoacan government responding to a spate of deadly attacks in Mexican . The number of federal police officers patrolling the state has more than tripled . Sudden spike in violence follows arrest at least a half-dozen of high-ranking drug cartel member . At least 18 federal agents and two soldiers have been killed since the weekend in Michoacan , the home state of President Felipe Calderon . Cartel accused in the slayings of 1,300 federal police officers .
Michoacan government responding to a spate of deadly attacks in Mexican . The number of federal police officers patrolling the state has more than tripled . Sudden spike in violence follows arrest at least a half-dozen of high-ranking drug cartel member . Cartel accused in the slayings of 1,300 federal police officers .