CNN New Day With John Berman and Brianna Keilar July 7, 2024
kennedy and the cuban missile crisis, i don't think there's anything as the ability of using a nuclear tact cal weapon and not end up with armageddon. >> this is stark language and comes as the u.s. considers how to respond to a range of potential scenarios. let's bring in white house correspondent jeremy diamond for more. >> reporter: u.s. officials say there's been no change in russia's nuclear posture. one senior u.s. official telling cnn that the u.s. didn't detect anything yesterday that would indicate an escalation in russia's nuclear posture, that's why it's striking to hear t...