9 AM ET: Brittney Griner released, nuclear threat 'increasing', TikTok sued & more

US Basketball star Brittney Griner has been released as part of a prisoner swap with Russia. Meanwhile, Russia's President Vladimir Putin says the threat of nuclear war is "increasing". Police in Idaho have a potential new lead in the killings of 4 college students. Prince Harry says some of his family felt the media scrutiny of Megan Markle was a "rite of passage". Plus, why Indiana's Attorney General is suing TikTok.To learn more about how CNN protects listener privacy, visit cnn.com/privacy