Muslim Brotherhood Protesters March in Cairo

A supporter of Egypt's ousted President Mohamed Morsi waves a banner during a march in Cairo, Oct. 4, 2013.

Supporters of deposed President Mohamed Morsi and the Muslim Brotherhood clash with anti-Morsi protesters during a march in Cairo, Oct. 4, 2013.

Supporters of Egypt's ousted President Mohamed Morsi wear masks with the former leader's likeness during a protest in Cairo, Oct. 4, 2013.

Supporters of Egypt's ousted President Mohamed Morsi chant slogans against Egypt's defense minister and hold placards showing an open palm with four raised fingers during a protest in Cairo, Oct. 4, 2013.