Tanks out in Cairo

Egyptian Army deploy near the presidential palace to secure the site of overnight clashes between supporters and opponents of President Mohammed Morsi in Cairo, Egypt, Dec. 6, 2012. The Egyptian army has deployed tanks outside the presidential palace in Cairo following clashes between supporters and opponents of Mohammed Morsi. (AP Photo)

An Egyptian Army tank deploys near the presidential palace to secure the site of overnight clashes between supporters and opponents of President Mohammed Morsi in Cairo, Egypt, Dec. 6, 2012. The Egyptian army has deployed tanks outside the presidential palace in Cairo following clashes between supporters and opponents of Mohammed Morsi. (AP Photo)

An Egyptian Army tank deploys near the presidential palace to secure the site of overnight clashes between supporters and opponents of President Mohammed Morsi in Cairo, Egypt, Dec. 6, 2012. The Egyptian army has deployed tanks outside the presidential palace in Cairo following clashes between supporters and opponents of Mohammed Morsi. (AP Photo)

Egyptian Army soldiers install barbed wire near the presidential palace to secure the site of overnight clashes between supporters and opponents of President Mohammed Morsi in Cairo, Egypt, Dec. 6, 2012. The Egyptian army has deployed tanks outside the presidential palace in Cairo following clashes between supporters and opponents of Mohammed Morsi. (AP Photo)

Egyptian Army soldiers spread barbed wire near the presidential palace to secure the site of overnight clashes between supporters and opponents of President Mohammed Morsi in Cairo, Egypt, Dec. 6, 2012. The Egyptian army has deployed tanks outside the presidential palace in Cairo following clashes between supporters and opponents of Mohammed Morsi. (AP Photo)

Egyptian Army tanks deploy near the presidential palace to secure the site of overnight clashes between supporters and opponents of President Mohammed Morsi in Cairo, Egypt, Dec. 6, 2012. The Egyptian army has deployed tanks outside the presidential palace in Cairo following clashes between supporters and opponents of Mohammed Morsi. (AP Photo)

Egyptian Army soldiers spread barbed wire near the presidential palace to secure the site of overnight clashes between supporters and opponents of President Mohammed Morsi in Cairo, Egypt, Dec. 6, 2012. The Egyptian army has deployed tanks outside the presidential palace in Cairo following clashes between supporters and opponents of Mohammed Morsi. (AP Photo)

Egyptian Army tanks deploy near the presidential palace to secure the site of overnight clashes between supporters and opponents of President Mohammed Morsi in Cairo, Egypt, Dec. 6, 2012. The Egyptian army has deployed tanks outside the presidential palace in Cairo following clashes between supporters and opponents of Mohammed Morsi. (AP Photo)

An Egyptian Army officer detains a man who was attacked by protesters gathering near the presidential palace while the army deploys to secure the site of overnight clashes between supporters and opponents of President Mohammed Morsi in Cairo, Egypt, Dec. 6, 2012. (AP Photo)

An Egyptian Army officer detains a man who was attacked by protesters gathering near the presidential palace while the army deploys to secure the site of overnight clashes between supporters and opponents of President Mohammed Morsi, in Cairo, Egypt, Dec. 6, 2012. (AP Photo)