If you follow the approach that started in the late 70's with drunk driving - they did both. They increased the drinking age from 18 to 21, created new laws, enforced the laws, tons of public awareness, etc etc etc. Seeing how it dropped DWI fatalities by 2/3's I'd say its working.

>So you're saying that, instead of passing NEW laws, perhaps we should increase public awareness of gun safety, and enforce the existing laws?
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>>>There are already HUNDREDS of gun laws. Not one stopped the mass shootings. There are little to no mental health laws in place to stop madmen.
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>>I getting tired of hearing this lame argument. Ok there are HUNDREDS of drunk driving laws, but not one has stopped people dying at the hands of drunk drivers. HOWEVER all these new laws, public awareness campaigns, more strict penalties, etc etc etc have dropped the fatality rate by..ummm..lets see here...2/3's in recent decades! So perhaps you need to reconsider your thinking because this obviously works.