Not every American who marches behind a hateful crackpot is a hateful crackpot. The peaceful, thoughtful throng that assembled for Louis Farrakhan at the Million Man March in 1995 -- including a young Barack Obama -- proved that point. Notwithstanding some commentary, I tend to feel the same way about the much different (and rather smaller) assemblage that gathered at the behest of Glenn Beck in Washington last Saturday. Certainly, if you’re president of the United States, the most prudent course is to draw a distinction between the leader and the anonymous masses and treat the latter with at least...