U Gambiri, who has recently had a couple editorials in the Washington Post was arrested in Burma.  From the Democratic Voice of Burma: 

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Nov 13, 2007 (DVB)–U Gambira, the leader of the All-Burmese Monks Alliance and one of the organizers of the public protests in September, has been arrested in Singaing township in Mandalay division, according to a family member.

He was arrested on 4 November in Singaing, having been on the government’s most wanted list for his part in instigating the demonstrations.

U Gambira is 27 years old and is also a spokesperson for the People’s Movement Leader Committee.

Burmese authorities have detained U Gambira's mother, sister and two of his brothers in the past month when they were unable to arrest him.