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http://www.pbs.org/washingtonweek On the Webcast Extra: More on the unrest in the Middle East, especially Yemen, and the arrest of a Saudi terror suspect in Texas. Also, the panel looks at the GOP field for the '12 presidential race, including Mike Huckabee. And more on National Journal's rankings of the most liberal and most conservative members of congress. With Martha Raddatz of ABC News, Pete Williams of NBC News, Karen Tumulty of The Washington Post, and Major Garrett of National Journal.

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