respond to in an emergency. >> how long did it take before you personally knew there wasn't a missile coming? >> certainly i had made several phone calls after getting the initial alert to find out what was actually happening. it took me a couple of minutes, maybe five minutes or so before i had determined that it was a false alarm. >> meantime everybody else was waiting for 38 minutes before that correction was issued. i know in your previous press question-and-answer sessions you've talked about what you have learned being that somebody pushed the wrong button and that's what triggered this calamity. what more have you learned about what went wrong? >> well, ana, i just wanted to let you know that we did after around 8:13 we did discover that