Egyptian security forces tighten security in Cairo ahead of pro-Mursi demonstrations.<br/> <br />Soldiers can be seen behind make shift brick walls -- near the ministry of defense as parts of the city center have been cordoned off to the public.<br/> <br />The efforts come as Egypt's Muslim Brotherhood called for mass protests Friday in its campaign to reverse the army's overthrow of President Mohamed Mursi.<br/> <br />Later in the day tens of thousands fill the streets.<br/> <br />More than two weeks after Egypt's military ousted Mursi from office, there is still no sign of a possible deal to defuse the crisis..<br/> <br />(SOUNDBITE) (Arabic) PRO-MURSI PROTESTER, SAYING:<br/> <br />"I've come out to support legitimacy. Not because of President Mursi, but to support legitimacy. They stole the vote that I cast in the elections. I want to ask Sisi where is my vote? Where did my vote go Sisi? And why did you put Mursi in jail when he didn't do anything?"<br/> <br />An interim government has now been sworn in and the arm
