Business Pulse - Local unemployment hits 24% Forget about a ripple effect. The shutdown of the Nissan plant in Smyrna, the largest automotive manufacturing facility in North America, has sent tidal waves of problems to employers in Warren County and throughout Middle Tennessee. Yikes! OMG! Noooo! Latest Business Pulse- Flight school ready for takeoff Big Things In Store At Hotel Established businesses making major changes Business Pulse - Eat Local, listen local