The White House response to Ferguson wouldn’t be complete without a meeting with Al Sharpton, the infamous agitator who has become President Barack Obama’s “go-to man on race,” in the words of a Politico headline from last August. So Sharpton was inevitably one of the civil-rights leaders at a White House meeting Monday. The president no doubt passed up the opportunity to direct Sharpton to the Treasury Department up the street, which would surely love to have him visit and make good on all the taxes he has avoided paying through the years. A New York Times report found that...