Mohammed al-Zawahri

(Newser) - Egyptian authorities have arrested the younger brother of al-Qaeda chief Ayman al-Zawahri, a security official said today. Mohammed al-Zawahri, leader of the ultraconservative Jihadi Salafist group, was detained at a checkpoint in Giza, the city across the Nile from Cairo. He had been allied with ousted President Mohammed Morsi, whose...