Washington, Rabi'I 19, 1436, Jan 10, 2015, SPA -- The United States has issued a global travel warning after recent terror attacks in France, Australia and Canada. The alert comes hours after French police killed three hostage-takers in a pair of incidents. Two of the men are believed responsible for Wednesday's attack on a satirical magazine in Paris. Twelve people were killed in that assault, France's deadliest terror incident in decades, AP reported. The State Department's warning says attacks against Americans are becoming increasingly prevalent. --SPA 15:00 LOCAL TIME 12:00 GMT www.spa.gov.sa/w