FILE - In this Wednesday, Sept. 12, 2012 file photo, Egyptian protesters carry their national flag and a flag with Arabic that reads "No God but Allah, and Mohammed is his prophet," and chant anti U.S. slogans during a demonstration in front of the U.S. embassy in Cairo, Egypt, as part of widespread anger across the Muslim world about a film ridiculing Islam's Prophet Muhammad. he attacks against U.S. diplomatic targets appear part of wider power plays by Salafis and other extremists to challenge the leadership struggling for stability in places such Egypt and Libya. (AP Photo/Nasser Nasser)
