A nationwide study that shows just 9 of 25 state gun laws are effective in reducing firearm deaths, suggests that if three laws implemented in some states were adopted nationwide, they could reduce gun deaths by more than 80 percent.

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A nationwide study that shows just 9 of 25 state gun laws are effective in reducing firearm deaths, suggests that if three laws implemented in some states were adopted nationwide, they could reduce gun deaths by more than 80 percent.