is whether the chinese have actually measured the ping and got an accurate frequency or whether they're relying on hearing the ping. you can't determine the exact frequency just by hearing. you need to be able to measure it and analyze it. whether they have done that on the second set of chirps or pings, i don't know. obviously, this is as good a lead they have at the moment and one they certainly need to keep following up. by sending the ideal equipment to get a transponder and a microphone in the deep part of the ocean away from the noisy surface zone, they have a better chance of a clear signal and hopefully the transponder will still be transmitting. >> mary ellen o'toole. a few moments ago mary schiavo said she never heard or saw the perfect crime and now 31 days into this mystery and no