Culminating a 4-year battle between business owners and gun rights advocates, Tennessee’s legislature approved a National Rifle Association-backed measure letting handgun owners with permits carry their weapons in their cars anywhere they go, The Tennessean reports. The so-called guns-in-trunks bill lifts criminal penalties on carrying a handgun into a parking lot, even a school, university, or workplace. Gov. Bill Haslam is likely to sign it. The vote comes as Congress debates tougher gun laws in the wake of the Newtown shooting in December. In Tennessee's Republican-led legislature, the movement has been toward letting law-abiding gun owners carry their weapons in more places. The bill approved yesterday lets the nearly 400,000 Tennesseans with handgun permits, plus those with permits from many other states, carry their guns in their vehicles at all times – even in workplace and school parking lots, as long as it remains in a locked vehicle.