I argued in my last post that the Khorasan Group, as well as a series of developments throughout the al-Qaeda (AQ) network, suggest the return of AQ as a potentially serious threat to the United States. A number of events in South Asia, which might have been overlooked if not for the threat from the Khorasan Group, are especially illustrative of the depth of the problem that the U.S. and the world are facing in the AQ network’s resurgence.