investigating these unusual incidents. you heard former senator harry reed speaking out about how important this program was. can you tell me, can you tell our viewers what did you discover? >> well, i think the best case we can talk about publicly at this time, the most compelling evidence which goes to the heart of your question, jim, involves the nimitz case in 2004. what i think people need to understand about this is a few of the details. so the u.s. -- >> this is to be clear, and we had the pilot on last night. this is an encounter off the pacific coast, a fast moving object. >> correct. so what occurred was the carrier group was working out for an overseas deployment. over a period of two weeks, there were numerous instances in which up identified aircraft were approaching the carrier descending from over 80,000 feet at supersonic speeds.