July 22, 2020

The film "Radioactive" portrays the life of Marie Curie, the first woman to win a Nobel Prize -- with her husband Pierre -- for discoveries in radioactivity. Faced with a succession of obstacles as a female scientist, she went on to win a second Nobel in her own right. Christiane speaks with the film’s director, Marjane Satrapi, who came to prominence with her graphic novel memoir "Persepolis."

An online playbook seems to be emerging around some of the political conversations taking place: someone says something deemed offensive or troubling, social media goes into a frenzy, and that person is effectively “cancelled.” An open letter recently published in Harper’s Magazine argues that this threatens free speech. The letter’s co-author, Thomas Chatterton Williams, joins the program.