http://patch.com/massachusetts/lexington/why-were-there-metal-detectors-lexington-town-meeting-0
Lexington Police Chief Mark Corr told Patch that police noticed particularly concerning speech on public blogs bearingarms.com
and forums, which spurred the need for heightened security.
Chief Corr should resign if he is that afraid of a bunch of keyboard commandos typing from their mothers' basement!
All the metal detectors and anal probes aren't going to stop anyone who is vociferous about their rights and disrupts the meeting by speaking loudly or out of turn (bad things, but unless they were affixing duct tape to the mouths of non-TMMs nothing was accomplished with their security theater)!