Farah is hardly a reliable source
Farah has peddled all sorts of breathless intel scoops over the last few years; I wouldn't put much stock in him. Not because he's a hard-right Christian extremist type, but because empirically, his scoops usually vanish without anything ever happening. Take his punditry if you like, but if there ends up being nothing to this it wouldn't be the first time for him. Is he still insisting that California wild fires have been set by al-Queda?