From the Guardian:

A reliable twitterer says security forces, including soldiers, uniformed police and plainclothes militiamen, are massing in Daneshju (university student) Park, preparing to meet protesters at Vali-asr square.

Mackey cites a report saying that Mousavi is under house arrest. Eli Lake has a report on a new strategy from the resistance, and this great quote from Mousavi spokesman, Makhmalbaf:

"Before this, everyone was saying the Iranian people are not ready for democracy, but we see now the Iranian people will die for democracy. We cannot lose this time."

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