“The Extent of Radicalization in the American Muslim Community and that Community’s Response.” That’s the title of a hearing by the House Committee on Homeland Security which opened today. The committee chair says the hearing is “absolutely necessary” but critics say it puts Islam on trial. This isn’t the first time Congress has tackled the subject of homegrown terrorism, but the tone is different this time. Yesterday, Attorney General Eric Holder weighed in disputing the accusation that the Muslim community hasn’t helped law enforcement in terrorism investigations. Diane and her guests discuss reaction to the hearings on Muslims in America.