Critics vow to sue after Washington State tightens gun laws
Initiative 1639 , a measure on gun control, passed overwhelmingly in Washington state with 60 percent of voters saying yes. Under 1639, the legal age to buy a semi-automatic rifle is raised from 18 to 21. Buyers of those weapons will also be subjected to enhanced background checks, and will have a 10 day waiting period before they get their guns. Critics are now vowing to sue to stop the measure.