Report: Defeated Ahmadinejad rival arrested in Iran  —  Iranian presidential candidate Mir Hossein Mousavi was reportedly arrested Saturday following the reformist's defeat at the polls by hardliner Mahmoud Ahmadinejad.  Supporters of Mousavi, the main challenger to Ahmadinejad …

Iran on Fire (Continuously updated)  —  The BBC says clashes between demonstrators and police in Tehran are the most violent in a decade.  —  Video below shows a human wave of demonstrators chasing frightened police officers.  —  Here is another video.  These protests are huge.

Statistical Report Purporting to Show Rigged Iranian Election Is Flawed  —  Like most Americans, there are few things I would like to see more than Mahmoud Ahmadinejad, Iran's hateful President, to be voted out of office.  Elections in thuggish, authoritarian states like Iran need be treated with the utmost skepticism and scrutiny.

Iran's political coup  —  If the reports coming out of Tehran about an electoral coup are sustained, then Iran has entered an entirely new phase of its post-revolution history.  One characteristic that has always distinguished Iran from the crude dictators in much of the rest of the Middle East …

The Revolution Will Be Twittered  —  Mock not.  As the regime shut down other forms of communication, Twitter survived.  With some remarkable results.  Those rooftop chants that were becoming deafening in Tehran?  A few hours ago, this concept of resistance was spread by a twitter message.

Violent clashes in Tehran  —  Mahmoud Ahmadinejad has been re-elected as president of Iran in a resounding victory, the interior minister says.  —  He won some 62.6% of the vote in an election marked by a high turnout of 85%, official figures show.  —  Supporters of pro-reform candidate …

Alerts from Tehran  —  *Hour/time given U.S. Eastern (unless otherwise noted)  —  There are rumors of a protest at Vali-Asr today at 12:30pm.  —  This is a trap. please pass this on to everyone you know.  The official word from Mousavi HQ is hold back and wait for word.  —  DO NOT ATTEND THE VALI-ASR PROTEST.

What Happened in Iran?  —  Let us begin by acknowledging that Iran is a complex society with an unusually opaque political system.  Few outsiders genuinely understand the place.  That makes understanding the country's presidential campaign - and interpreting the events of the last 24 hours - particularly tricky.

After a Disputed Election, Tehran's Streets Become a Battleground  —  It's way past midnight in Tehran, but this city is not sleeping.  Outside on the streets, people are honking their horns in protest and stretching their hands out of cars making peace signs — a sign of support for Mir-Hossein Mousavi …

Tehran Tienanmen?  —  For more than a decade, we've been hearing about the real Iran—the one whose youth is Westernized, desirous of connection with the United States, and tired of living in a theocracy.  It's too soon to know whether the protests today in Iran represent the fruition …