Shi'i Muslims, who make up eleven percent of the population of Islamic nations, have produced more than their share of political activism - from the Iranian revolution in 1978-79 to a series of dramatic individual actions, most recently in Lebanon. Why has Twelver Shi'ism changed from quietism to an active involvement in politics? How will Shi'i political activism affect the struggle in and for Lebanon, the Iran-Iraq war, Soviet attitudes toward Afghanistan...