KPAM radio interviewed Michael Isikoff, of Newsweek, who has been working on this story.
He said that this guy was "detained," not arrested, by the FBI as a material witness because his fingerprints were apparently found on a bag containing bomb-making materials in the debris of the Madrid bombing.
This guy is a Muslim convert, who sometimes attends the Bilal mosque in Beaverton. He was either the lawyer or one of the lawyers defending Jeffrey Battle, one of the Portland 7.
There are lots of reporters camped out at this guy's house right now, and his wife is supposedly going to make a statement at any time.