CAIRO — Egypt's Islamist President Mohamed Morsi assumed sweeping powers on Thursday, drawing criticism that he is seeking to become a "new pharaoh" and raising questions about the gains of last year's uprising which ousted Hosni Mubarak. The move is a blow to the pro-democracy movement that toppled the long-time president, himself derided by many as a pharaoh, and raises concerns that Islamists will be further ensconced in power. Opposition forces denounced the declaration as a "coup" and called for nationwide protests on Friday. "The president can issue any decision or measure to protect the revolution," according to a decree...