ISTANBUL Pakistani security forces killed all five militants in a retaliatory strike after attackers targeted a police training center in Khyber Pakhtunkhwa province on Friday, said officials. The clearance operation lasted five hours during which three officers were killed and six injured, according to a statement from Khyber Pakhtunkhwa police. Immunization, including suicide jackets, were recovered from the militants. Interior Minister Mohsin Naqvi said seven police personnel lost their