Gottlieb: Regulators need to step up oversight on counterfeit e-cigarettes
The Center for Disease Control reported 153 cases of severe lung disease linked to vaping in 16 states. In one case, an 18 year-old in Florida believes his lung collapsed after smoking an electronic cigarette. Investigators are looking into what's causing these pulmonary illnesses. Former FDA Commissioner Dr. Scott Gottlieb, who also recently joined Pfizer's board, joins CNBC's "Squawk Box" team to discuss.