This week, Rep. Peter King (R-NY) will hold long-awaited hearings in the House Homeland Security Committee on Muslim cooperation with law enforcement in terror investigations. King pretty much has his mind made up before entering the hearing room – he believes that Muslim-Americans haven’t aided enough in investigations against extremism, despite a long record to the contrary.

Ranking member of the House Homeland Security Committee, Bennie Thompson, just wrote a letter to Rep. Peter King asking him to include other terrorists, in addition to Islamic extremists, in his fear-mongering hearing this month.

Rep. Peter King will hold hearings on “the radicalization” of American Muslims when he gets his gavel for the House’s homeland-security committee. Framing the question that way predetermines its outcome: millions of Americans will be presumptively guilty of drifting into fellow-traveling with al-Qaeda. But King is right that even a statistically miniscule rise in homegrown terrorism deserves thorough analysis. The question is how real King will allow his hearings to get.