and so really once the first story published, it didn't shake loose new sources of information that allowed us to keep going with different angles. >> so let me ask you about the dulles stakeout, dan. because the craziest detail of all of the flights is he chartered a flight from philadelphia to washington, d.c. which i never heard of a person -- commercial or not, flying from washington to philadelphia. i've literally never heard of a person doing that. they are two hours away, you could drive or walk if you have enough time. they are close cities. how did you stake out that flight? >> so it was a team effort and i think dan and i had different advantage points if you will as to how we did. it but in a nut shep, i was in a car and i was driving and dan was on feet and he was able to see charter