U.S. intelligence officials say airstrikes last month near the Syrian city of Aleppo killed just one or two key members of an al-Qaida cell that's plotting attacks on the West.
Officials say many militants had scattered before the strikes — fleeing after news reports had highlighted the fighters' activities — so the strikes didn't deal a crippling blow.
Among those who survived is a French-born man who fought in Afghanistan and is of great concern to U.S. intelligence officials.
The strikes were effective in setting back the Khorasan Group.
But Rep. Adam Schiff — a member of the House Intelligence Committee — says no one thinks the strikes will end the threats from the militants.