
Correspondent Lesley Stahl sits down with political lightning rod Rep. Marjorie Taylor Greene in her first interview since abruptly announcing her resignation from Congress; Correspondent Sharyn Alfonsi investigates the next frontier: AI chatbots; Correspondent Jon Wertheim travels to Switzerland's Vallée de Joux ? known as "Watch Valley" ? where top brands have been refining the art of mechanical watchmaking for centuries.