Whether or not American military intervention in Syria is ill-advised can and should be debated, but this is a president who has an impressive record of finding and neutralizing bad guys with violent intent on Western targets. Muhsin al-Fadhli was not only the leader of the group, but was thought to be planning "imminent attacks against the West".
Kuwaiti al-Fadhli was a confidant of Osama bin Laden who likely had prior knowledge of the attack against the US on 911, according to intelligence sources, and had a $7 million bounty on his head.