Bostoners
should focus on issues they can influence. Once the bombing happened, besides civilian assistance on the scene, donations, and good will, the public
should not have any more concern about the incident unless instructed by the police or given ample evidence to suspect someone as guilty.
It doesn't require the concern of all those who have no further interaction with the event. They gave money, they comforted relatives and friends, they let the police go find those responsible, and they move on. You don't linger on a unique incident with nigh impossible odds of something similar happening again that close to any of them with any similarity to this event.
They can care about pollution, chemical threats (that they can influence via money or time), and the overbearing reach of federal authority.
At this point, unless you are giving time or money to the aftermath or contributing to its investment, you are wasting your time and effort having any further thoughts on the matter. It is beyond your hands and influence then. Spend your time on things that matter.
The people of Boston should not wake up tomorrow any less secure in their wellbeing than the day before. Like Stallman said, the likelihood of dying to some asshole terrorist is so slim you can accurately discount the probability and just tell everyone "you won't die to a terrorist". The chances of you meeting one person that is incorrect for is absurdly small.
What Stallman speaks of is what you can take action about. The dinner table discussions should not be "those two brothers in Boston" that were a discontinuity of expectations but of real issues that you can change.