New Delhi, Feb. 21 -- Standing on her balcony in the Iranian capital, Tehran, the teacher shouted out into the darkness, "Death to the dictator!" and "Death to the murderer, Khamenei!" on a recent night, joining the slogans coming from windows and rooftops around her relatively affluent neighborhood.

A few voices in the darkness responded with slogans in support of Iran's 47-year-old Islamic Republic.

"Shut up! Choke on it!" her neighbors shouted back, drowning out the pro-government voices, the teacher recounted to The Associated Press, speaking on condition of anonymity for her safety.

Iranians across the country are still reeling with shock, grief and fear after massive nationwide protests were crushed by the deadliest crackdown eve...