A US-based nonprofit group has issued a letter to American Airlines warning against doing business with Qatar — and will be sending tailored versions to other international corporations. Qatar is allegedly harboring terrorists and funding extremist groups, according to the letter sent by the Counter Extremism Project (CEP). The letter warns of a “risk to employees resident in Qatar” and accuses Qatar of offering financial support, either directly or indirectly, to Hamas, Al-Qaeda in the Arabian Peninsula and the Taliban.