The problem is you are looking to do something, but we need to do something that is effective, and which preferably doesn't infringe upon our Constitutional rights. If you actually want to do something effective....
Enforce the laws already on the books as most homicides are done with illegally obtained weapons. 82% of all gun crimes are committed with an illegal weapon.
Harden soft targets, the Boston Marathon Bombers and the numerous trucks smashing through crowds involved no firearms. We protect our money with guns, why not our children?
Fix our healthcare system. This one I don't have a great answer of what should be done.
Anyhoo.... fix those items and you will have accomplished something useful.
:soapbox: