By — William Brangham William Brangham Leave your feedback Share Copy URL https://www.pbs.org/newshour/podcasts/horizons-with-pbs-news/maha-has-a-plan-to-clean-up-the-american-diet-will-it-work Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter View all episodes By — William Brangham William Brangham William Brangham is an award-winning correspondent, producer, and substitute anchor for the PBS News Hour. He also serves as the moderator of Horizons with PBS News. @WmBrangham