Today marks the debut of Rossen Reports, a new unit led by national investigative correspondent Jeff Rossen. First out of the gate: A hidden camera investigation exposing how easy it is for anyone – even criminals – to buy dangerous weapons. Some say it's a major loophole in the law. At gun stores, you have to get a background check before you can buy a weapon. But online in most states, anyone from law-abiding citizens to dangerous criminals – even terrorists... (GunPolicy.org)