 Complete the following phrase:  In 1994, Naguib Mahfouz, 82 years old at the time, was stabbed in the neck outside his home. Mahfouz was the only Arab ever to have been awarded the Novel Prize for literature, but was widely reviled by many revivalist preachers for the alleged blasphemy of his work Children of Gebelawi, which was banned by Egyptian religious authorities. Several years before Mahfouz was stabbed, Omar Abdul-Rahman, the blind sheikh served time in a U.S. penitentiary for his involvement in the 