Days after the mass shooting that killed 10 at Oregon's Umpqua Community College, Hillary Clinton is rolling out a plan to strengthen gun laws in what would be common-sense, modest ways in a sane country: Clinton would tighten rules governing gun show and Internet sales using executive action "if Congress will not act," aides said. That includes the so-called gun show loophole, under which private gun sellers aren't required to perform background checks of buyers. She would also push to repeal a law backed by the National Rifle Association that prevents crime victims from suing gun manufacturers.