Universal background checks won't fix America's gun crisis. But there's something else that might.
It seems like after every mass shooting, politicians talk about expanding background checks for gun buyers. But background checks don't actually do a great job of keeping dangerous people from getting guns. What does? A licensing system, where before you can buy a gun, you need a license from the state.
* Dig deeper into Massachusetts' licensing system on Vox.com:
* And read the Johns Hopkins research on gun licensing:
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