Iranian protesters took to the streets today as they do every Nov. 4 to mark the 30th anniversary of the U.S. embassy takeover. But this year, opponents of the Iranian regime used the government sanctioned day of street demonstrations to challenge the hard line administration. While supporters of the regime led chants of "death to America," crowds nearby shouted "death to the dictator," a veiled reference to President Mahmoud Ahmadinejad and his political ally, Supreme Leader Ayatollah Ali Khamenei. State security forces had issued a warning against opposition protests, and broke up the crowds using batons, tear gas, and gunfire. The International Campaign for Human Rights cited thousands of protesters collecting in Tehran, Tabriz, Shiraz...