A view shows a fly-past over protesters against ousted Egyptian President Mohamed Mursi, in Tahrir Square in Cairo July 4, 2013. The leader of the Muslim Brotherhood was arrested by Egyptian security forces on Thursday in a crackdown against the Islamist movement after the army ousted the country's first democratically elected president Mursi. At least 16 people have been killed and hundreds wounded in street clashes across Egypt since Mursi's overthrow. REUTERS/Steve Crisp (EGYPT - Tags: POLITICS CIVIL UNREST TRANSPORT)