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paula reid in for jim acosta. you're in the "cnn newsroom" we begin this hour with a potential new milestone in russia's war in ukraine. ukraine has announced that it has used a u.s. made patriot air defense system like this to bring down a russian hypersonic missile. if true, it would be the first time ukraine was able to intercept a missile that travels at ten times the speed of sound. cnn's sam kiley joins us from kyiv with the latest. sam, how significant is this? >> reporter: i think it's very significant indeed, for two reasons. first of all, it's kind of proving the need for h...

And to be so unhappy or to white knuckle things. when i got there, i knew it was okay not to shoulder a responsibility or a legacy. it was really eye opening and really a moment of clarity. >> you have gone on this odyssey. you have written a book. what's next? >> i like story telling. writing a book was an incredibly difficult undertaking, but one that i greatly enjoyed. this one came organically. maybe something else in that space, maybe something else in the documentary space. they do great stuff on this network with evan longoria. that's good stuff. but that is the area which i like. i enj...