From the comments, once again:
A slightly-interesting, non-bomblike piece of guerilla marketing freaks everyone out and Boston shuts down as police run around blowing shit up and worried SUV moms report the ones they saw.
I mean, COME ON.
And he’s right: the instant we heard the news, every single commuter on their way to Park Street dropped to the ground in a foetal position, crying aloud for their loved ones and parents, and we stayed that way for hours — incosolable, shaken, and wounded. The Boston Globe poetically expressed the apocolyptic, world-ending truth of the day:
There was no public panic.