Bruce Schneier weighs in with some excellent points.

More:

Wil Wheaton has this to say:

You know, if the goal of terrorists and the whole point of terrorism is to scare the shit out of us so badly that we leap ten feet in the air whenever someone says “boo,” then the terrorists are clearly kicking our national asses.

The folks at Making Light are also all over it; this rundown is entitled “Why the Boston Police have no credibility.”