Citizen
Founder's Club Member
Here is a great little video under four minutes with some useful advice. Some of the info is pretty obvious type stuff, but there is info I never considered. His cop experience shines through in the questioning he gives the caller on the other side of the door.
http://lewrockwell.com/gun-reviews/dont-open-the-door.html
http://lewrockwell.com/gun-reviews/dont-open-the-door.html