terrorism , the al Qaeda affiliate in the Yemen , is widely viewed as the most violent of the lot ; so when its leader , Ibrahim al - Asiri , carries out US lone - wolf attacks for terrorists and calls for more of them , the US security forces are right to be concerned . al - Qaeda is believed to be developing a ' new generation ' of wearable explosive devices ( explosives , underwear etc . ) .
AQAP, the Al Qaeda affiliate in the Yemen, is widely viewed as the most violent of the lot; so when its leader, Ibrahim al-Asiri, singles out US lone-wolf attacks for praise and calls for more of them, the US security forces are right to be concerned. Al-Asiri is believed to be developing a 'new generation' of wearable explosive devices (shoes, underwear etc.).