White house today why they didn't act sooner, despite two years to prepare for the 5g upgrade. >> did the faa drop the ball here? >>you know, i think, mary, there will be lots of time to look back and see how we got here. >> reporter: and david, despite that rollout delay, we may still see some disruptions, especially among international carriers. david? >> all right, dee owe, thank you. now to russia and ukraine tonight. the white house calling this an extremely dangerous situation, claiming military action by russia could happen at any moment, in their words. secretary of state antony blin...