Jeff invited them over because they were threatening other people with raids
They had already been by looking for Jeff that week in his neighborhood.
They had already rifled the 4473 forms in all the gunshops and were calling folkes up, scheduling interviews and asking people to submit their rifles for fingerprinting.
Saying NO to them was only going to get you further harassed
read what happened to Chaim.
http://www.thefiringline.com/forums/...hreadid=134951
due to the "emergency" many rights were being stepped on.