The Guardian reports talks with the spiritual leaders of ISIS aimed at releasing the killed hostage began in mid-October and ran for several weeks with the knowledge of the FBI.
More attacks resembling the Peshawar siege are expected as the coalition prepares to leave Afghanistan.
Since 2001, Pakistan has been gripped by an internal war with the Taliban and other radical groups that has killed tens of thousands of civilians and security personnel.
European Union backs UN plan for Syrian truce; Iraqi PA visits United Arab Emirate for first time.
Nearly seven people died per hour in November due to violence attributed to Al-Qaida, Islamic State and other groups, according to BBC study.
UN envoy warns of Islamic State camps in Libya; Islamic State orders WiFi cut during prayers; Al-Qaida attacks Yemeni airbase in retaliation to U.S. raids
'Israeli example' cited as possible justification for use of torture when interrogating terror suspects 'where there is no other available means to prevent the harm' they might inflict.
Pierre Korkie was killed by a militant during an attempted rescue operation in Yemen by the U.S., according to American officials.
Four Syrians, a Tunisian and a Palestinian are first inmates to be transferred to South America from the prison in Cuba, amid a renewed push to close the facility.
Photojournalist Luke Somers and a South African citizen held by Al-Qaida were 'murdered' by terrorists during rescue attempt by U.S. commandos, says Chuck Hagel.