2 US citizens kidnapped in Mexico found dead, 2 others alive

TWO US citizens kidnapped by suspected Mexican drug traffickers were found dead yesterday while two others survived, in what officials said appeared to be a tragic case of mistaken identity.

Washington vowed to do everything in its power to ensure justice for the victims, who crossed the border into the crime-plagued city of Matamoros in Tamaulipas state on Friday for medical reasons.