ROUGH CUT (NO REPORTER NARRATION)<br/> <br />STORY: Clashes between protesters and security forces in Cairo intensified on Tuesday as Egypt's army chief warned that political unrest was pushing the state to the brink.<br/> <br />The instability has provoked unease in Western capitals, where officials worry about the direction of a powerful regional player that has a peace deal with Israel. The United States condemned the bloodshed and called on Egyptian leaders to make clear violence was not acceptable.
