Just off Cairo's busiest downtown square, swirling with the cacophonous bustle of traffic, lies a cool oasis of calm greenery and unhurried academic life. Behind crenelated arabesque walls the visitor finds a college campus with fresh green lawns, tennis courts, benches, and arbored walkways reminiscent of colleges the way they used to be in the United States. This is the American University in Cairo, a little known but extremely influential institution that for the past 50 years has weathered wars, revolutions and mercurial shifts in U. S.-Egyptian relations. Even today, when Washington and Cairo do not maintain formal diplomatic relations, the American University in Cairo, or A.U.C., as it is commonly known, provides a neutral zone in wh...