1. They are still on active duty and are collecting a paycheck.

2. The average armed security guard ... What good might that do is questionable -- let's not discuss his shooting abilities. It would cost little to station active duty soldiers that are collecting a paycheck on guard duty at schools.

3. If you are in the armed forces what you like to do is of little issue;
You carry out any legal order -- that is what you are paid to do -- in a volunteer army by that soldier's choice -- he enlisted ...

4. It's a band-aide we cant find and lockup every psycho-killer from society unfortunately.

5. It's already illegal to carry a firearm into a school unless you are a allowed person.

So the real question is why was this guy not stopped -- he carried concealed weapons into a school and that is a crime. "Lanza was found dead next to three guns, a semi-automatic .223-caliber Bushmaster rifle and two pistols made by Glock and Sig Sauer, a law enforcement source told CNN." The guy was a nutjob, he intended to massacre -- you might not stop one maniac.

In the end, this may result on some restriction on the future sale of "assault weapons." No law can be ex-post facto and as long as the right to bear arms is guaranteed by the 2nd Amendment what arms are possessed legally are legal to own.

I guess we US citizens will have to decide on that 44 billion you assert as the rent-a-cop cost; That would cost the 120 Million US taxpayers [133,457,468 tax returns 2011] less than $40.00 a year. I would think there would be support for the bearing of this cost.

However, one rent-a-cop with a side arm is a limited solution. A few soldiers with automatic weapons and well trained in their use seems a more effective deterrent. That in itself will not stop some psycho but knowing that he would be facing down soldiers with flack jackets and fully auto rifles might scare a psycho off.

In spite of all the drama, and I am not diminishing this tragedy in any way, there will always be a problem of violence here, also gun violence for reason of our right to own firearms.

People were killing each other with rocks, spears, swords, and arrows for years. It is just the nature of some of mankind to murder. Should we outlaw Machetes too? They can be used to hack people to death, e.g.; Rwanda. Had the victims been armed in Rwanda, or guarded, might they not have been victims? Or at least, less of them and that is the point -- less pointless deaths.