smokers would quit among whom 381,000 would be african american smokers. reporter: tonight altria group, the parent company of some leading tobacco manufacturers, saying in part, taking these products out of the legal marketplace will push them into unregulated criminal markets that don t follow any regulations and ignore minimum age laws the fda proposal could go into effect in a year, but it s expected the tobacco industry will fight it, which could lead to a long court battle rehema ellis, nbc news. up next, our series climate challenge. inside california s drought emergency. the difficult choices farmers face and how they impact the u.s. food supply.