. >> gordon hawkey runs operations at psnc which negotiates government drug prices with pharmacy the. >> we don't know what will happen. >> but for worried parents, brexit is bringing very unbelievable policies. >> how can a country that's one of the biggest countries in the world be talkingls pro and what medicine comes th tugh. >>e to take a look at some of today's upgrades and downgrades. carnival was upgraded to buy from neutral at goldman sachs today. the analyst cited upbeat growth figures for the cruise line operator. the price target is $65. carnival shares closed at $56.09. >>> sanderson farms was upgraded. the analyst cited higher chicken prices and the prospec of china opening its markets to u.s. poultry products. the price target $127. it closed at $126.89, up more than 2%. >>> and coming up, new guide lines that regulators move to tighten sales of e-cigarettes in an effort to combat youth vaping >>> in an effort t curb teen vaping, the fda has released draft rules which couldemove some flavored e-cigarettes and cigars from store shelves. aditi royas the details. >> report