Follow us to Tennessee where hemp farmers are already pivoting in the face of a state ban and soon, a looming federal ban on basically all THC-derived hemp products. Will Congress step in to save this $28 billion industry?  Fact checking by Sierra Juarez (npr.org/people/1268825622/sierra-juarez) . Your Next Listen  — How would-be weed merchants hit a ‘grass ceiling’ (npr.org/2023/12/18/1197959045/would-be-weed-merchants-hit-a-grass-ceiling)   Connect with The Indicator  — Sign up for The Indicator’s weekly newsletter (npr.org/indicatornewsletter) !  — Buy the Planet Money book (lnk.to/i3AukBdDWE)   — Find our socials, YouTube and more (linktr.ee/indicator_npr) !  — For sponsor-free episodes, subscribe to NPR+ (plus.npr.org)   Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org (plus.npr.org) . See pcm.adswizz....