Report from United Nations panel says members of group's sleeper cells pose the most serious terrorist threat in Afghanistan today

Opened 6 months ago, Orkesh facility houses over 50 boys with Western parents, with Kurdish authorities hoping to avoid 'emergence of a new generation of extremists'

US military says it's 'highly confident' it killed insurgent, who was hit while alone on motorcycle, in second operation this month against senior terror figures in Syria

Unnamed 'experienced bomb maker, facilitator' is apprehended during operation; US says no civilians harmed

Killing of Abu Bakr al-Bahgdadi by US special forces is symbolic blow, but doesn't mean end of Islamic terrorism or portend significant change in how IS operates