(Iran Hostages) William H. Sullivan Ambassador to Iran captured by radical students in their takeover of the American Embassy in Tehran. Revealing T.L.S. on Embassy letterhead, 1p. 4to., Tehran, 1979 Shortly before the seizure of the American Embassy by Iranian students , the ambassador writes: what happened in this country was a genuine revolution... no consensus among those who overthrew the Shah concerning the future course... a period of deep divisions with a political struggle that may go on for some time... genuine danger that the resolution of these political differences may be accompanied by significant violence ....Was the Embassy prepared for what the ambassador envisioned?