Background check dip amid tight supply-United States gun today

Was posted a link to your Facebook feed.A tweet has been posted to your Twitter account.A link has been sent to your friend's e-mail address.Customers line up 16 January to buy guns in Duke's Sports store in New Castle, PA. (Photo: Keith Srakocic, AP)Background checks gun dipped in January amid tight supplies of firearms after a buying impulse following the school massacre in Connecticut in