James Clapper yesterday became the first US intelligence official to use the name of the cell, the Khorasan Group. He spoke at an intelligence conference in Washington.
The Associated Press reported Saturday that the group is working from Syria with al-Qaida's Yemen affiliate to plot attacks on American aviation.
The Khorasan Group has been described by US intelligence officials as a cell of veteran al-Qaida fighters from Afghanistan and Pakistan who are trying to recruit Western extremists to attack Europe and the US.