1. Enter house claiming to need to go somewhere. 2. Kill everybody. 3. Move to next willing house and repeat.
The us and them mentality being used to "combat" terrorism is so harmful because it puts people in a position where they have nothing to lose - they're already being discrimminated against etc.
I agree that a few assholes can ruin things for everyone but the reason they can is because they can ruin the trust people have in each other thereby leading to a situation like I described above. The solution is therefore counterintuitive (since they exploit intuition).
http://www.npr.org/templates/story/story.php?storyId=4256591
What do you mean by this? It sounds a bit ominous, if you'll pardon me.
I was wondering though if there are some creative ways to improve this initiative and make it more secure. Anyone has anything better than filtering eventual candidates to give shelter to according to rough "trustworthiness" of their Twitter account?