Jeremy Scahill reports: U.S. counterterrorism agencies have long been preoccupied with the threat posed by the recruiting successes of the Somali terrorist group al Shabaab in Western countries. The group has managed to lure hundreds of foreign fighters — including some 40 Americans — to Somalia through online propaganda videos and word-of-mouth in disaffected immigrant communities.

In recent years, however, al Shabaab has turned on the foreign fighters in its own ranks, waging a brutal campaign to purge the perceived spies from its midst. An intimate account of the Shabaab civil war was provided to The Intercept in a series of interviews conducted with a current member of al Shabaab and a source who has maintained close contacts with the group.

Al Shabaab has assassinated several foreign fighters on the CIA’s kill/capture list over the past few years and currently runs a network of secret prisons that hold, on charges of spying, U.S., British and other Western citizens who came to Somalia to join Shabaab, The Intercept has found. Shabaab operatives torture detainees using techniques such as waterboarding, beatings, and food and sleep deprivation, and conduct public executions of suspected spies, including by crucifixion. [Continue reading…]