Khamenei aide: Mousavi a U.S. agent

A top Khamenei aide called Mousavi a U.S. agent in an editorial today, and suggests Mousavi -- and former president Mohammad Khatami -- could be tried for treason.

[Hossein] Shariatmadari, who holds no official position but is a close adviser to Iran's supreme leader Ayatollah Ali Khamenei, added that Mousavi was trying to "escape punishment for murdering innocent people, holding riots, cooperating with foreigners and acting as America's fifth column inside the country."

Mousavi has kept a fairly low profile all week -- except for his defiant statement on Wednesday -- but there has been a growing push to prosecute him. This is the first time the regime has explicitly linked him to the U.S., though.

Two other developments from Iran: A British embassy employee has been charged with "acting against national security," and state television says 35 people were arrested in Iran's northern Mazandaran province for their role in the "post-election unrest."