More security on the Hill and elsewhere?

In the wake of the Tucson tragedy, increased security is now a hot topic. It never ceases to amaze me how people with little risk of attack (incl. those who carry weapons as part of their job, who live in high security buildings, have bodyguards, or live in low crime areas) seem to think that other people arming themselves for protection is a bad idea. This of course make sense given that no matter where you are in the social structure, you almost always have more to fear from those below you in the social structure. On another level, It's amazing how ordinary law-abiding citizen has become a member of the "dangerous classes," to those opposed to people exercising their Second Amendment rights. Further, the more we force people to become dependent on government, the less they will question government tactics and violation of civil liberties.