A path to racial harmony?

It seems to me that if the President really wants to be America's first "post-racial" President--instead of "probably the most needlessly racially divisive President ever"--he would do well to have the DOJ investigate the Black Panthers and others who are targeting arbitrary people named "Zimmerman"  (and some not named Zimmerman) in retaliation for alleged crimes against Trayvon Martin.

Here's an interesting piece by Larry Elder about how these things are often treated.  We can easily make too much of this, but if we aren't shown our blind spots--like how pretty young girls always seem to get more coverage when they become crime victims than others--we're going to have trouble correcting them, no?