Perry: US, Mexico must work to keep citizens safe

AUSTIN, Texas — Gov. Rick Perry called on U.S. and Mexican governments to work together to keep citizens safe and bring justice to gunmen who killed a U.S. immigration agent and wounded another.

In an interview with The Associated Press on Wednesday, Perry said "nobody's safe as long as these drug cartels are operating."

Perry said "both the American and Mexican federal governments have failed at keeping their citizens safe." He called on President Barack Obama and President Obama and President Felipe Calderon to work together.

Perry urged Americans to take precautions while traveling to Mexico and renewed his call for more border patrol troops on the border.

Officials say U.S. special agent Jaime Zapata died Tuesday after assailants opened fire on an SUV carrying the agents from Monterrey to Mexico City.