I did not vote in this one. First of all, "securing the area" means different things in different environments, and "environment" can include same ol' house, but in a differing circumstance, such as post-catastrophic-storm. Katrina and Rita were very near-misses here, and Alicia did slam us; we were without power, water, and phones for several weeks in 1983. Mobile phones were down over a week in 2001 after TS Allison, because flooding damaged the infrastructure for every provider except Verizon. (I now have multiple mobiles from two different mobile providers, and by next hurricane season will have my ham radio license; the wife is already licensed.) You can't call for the cavalry if you can't call, period! Secondly, there is NO choosing "only one" for me. That is pure silliness, unless you are the poor soul who has only one at the time. That being said, I see the shotgun as more suited for staying put, handguns as more suited for being handy while moving about inside structures, and the rifle as being something to dominate the "field" and deny cover to the enemy. At the same time, familiarity is a good thing, and I have much more familiarity and skill with the Remington 870 and certain handguns than I do with any rifle. I have searched countless structures and areas with handgun and shotgun as night-shift LE.