Not the gun nor the words of a religion that kills people, but it's the actions of those who are mentally unstable, and therefore try to arm their minds with an excuse to murder people by any means nessesary is the problem. Bombs can be built, trucks can be used, planes can be used, knives can be used. Fire can be used, and they all have been in the past, so do yourself a favor, and get off your gun and religion kick. Monitoring the mentally unstable, and also monitoring mosque are the order of today, but tomorrow it might be something different.
No, guy, the fact we have so many fucking guns and they are so easy to get REALLY is a problem.