Kerdasa

Egyptian security forces take cover during clashes with suspected militants, not pictured, in the town of Kerdasa, near Giza Pyramids, Egypt, Thursday, Sept. 19, 2013. Egyptian security forces backed by armored vehicles and military helicopters on Thursday laid a siege on an Islamists’ stronghold near Giza Pyramids and exchanged fire with what official news agency identified as “terrorist and criminal elements.” (AP Photo/Ahmed Gomaa)

Ahmed Gomaa/AP

Egyptian security forces take cover during clashes with suspected militants, not pictured, in Kerdasa, near Giza Pyramids, Egypt, on Thursday