Terrorism Warnings in Boston

Brought to my attention by my cousin, Search underway for six who may pose terrorist threat to Boston.

If its not an attack then it just be a testing of our response times and the general hysteria that arises from these events. Or maybe this is the first in a long series of false warnings to lull us into a false sense of security. I don't know but I'm hoping that this is just an over imaginative person and we're not looking at a dirty bomb being detonated in Boston.