There is always a need to balance our constitutional rights against the needs of our society for peace, safety, and fellowship.
In the case of the 1st Amendment: We understand that the concept of free speech should not extend to "shouting fire in a crowded theater" (Chief Justice Oliver Wendell Holmes). Perhaps we should consider the real damage caused by violent video games, violent films, and violent pornography in this light. Censorship is always a difficult subject and we could possibly approach these issues by at least firmly restricting access to younger people, while developing a wide-ranging dialogue with parents, teachers, and the kids about the harm caused. As long as it is available in our homes and on the internet, I know from personal experience that children, particularly most young boys, will ALWAYS find ways to access stuff they really shouldn't be seeing. If you don't believe me, gather a group of older teenagers as I have done, and ask them at what age they were first exposed to graphic xxx pornography. You will be shocked and saddened.
In the case of the 2nd amendment: Constitutional absolutism when it comes to military style, rapid-fire, large magazine assault rifles, and large bore, automatic handguns is functionally equivalent to yelling fire. These weapons do not provide increased safety for their owners, and are creating an atmosphere of armed terror for our communities.
We were all shocked by the events in Newtown. We should be equally shocked by the dozens of kids who are shot and killed week after week in the violent streets of our cities; equally shocked by kids seeing graphic sexual images at age 6 or 8; equally shocked by the rapid-fire violence of many of the most popular video games; equally shocked by the exploitation and objectification of young women; and equally shocked as President Obama said by our failure to protect our kids.