NBC News chief technology analyst Joanna Stern helps separate fact from myth when it comes to common AI questions. Also, Zazie Beetz stops by to catch up and talk about her new movie ‘They Will Kill You,’ blending action, comedy and horror. Plus, Dr. Natalie Azar and Joy Bauer break down metabolism — the foods, activities and habits that can raise or lower yours. And tech expert Mario Armstrong shares a few home tech upgrades for spring.