There are a lot of people extremely dedicated to the premise that the person or persons responsible for the Boston Marathon bombs are one or more of: Arab, Muslim, foreign nationals, members of or sympathizers with Al-Qaeda. And there are some as dedicated to the premise that the person or persons are one or more of: white, domestic, right-wing, homophobic.

At least one of them must be wrong.

I’m sure everyone will be gracious about admitting their surety was erroneous and premature when we finally actually know something.