NEW: After an extensive scientific review, FDA has authorized marketing of six Vuse Alto tobacco flavored e cigarette pods and accompanying power unit. Pods are sealed, pre filled, and non refillable. https: www.fda.gov tobacco products ctp newsroom FDA chief threatens to take e cigarettes off the market US FDA gives marketing nod to an e cigarette for the first time, ETBrandEquity U.S. health regulators have announced their first authorization of fruit flavored electronic cigarettes intended for adult smokers. More below