I've been following the debate about the radicalization of Muslims in America. Congressman Peter King will be holding a hearing tomorrow to begin investigating the radicalization of Muslims in America. Chris Matthews said something interesting in the clip below, about six minutes into it: he asked why aren't Arab Christians included in this investigation? His comment reminded me of Sirhan Sirhan, and I wonder if that's what Chris was thinking too. Sirhan Sirhan, the man who assassinated Robert Kennedy, was born to Palestinian Christian parents, and he was not radicalized by Islam.