bqt i think, you know, your question is legitimate in the sense that should we have group cknsent? i mean we've kind of -- >> so let me describe that. you say there's a moratorium on to the testing in native american tribes. i am aware what if an individual in a tribe wants to participate and insists. do you know of any instance where the individual has insists and even gone as f as an individual saying it's their rit, whatever statutory or constitutional other basis to participant that that's one of their individual rights. have yo heard inny instances? or anyone? >> i haven't. >> i could speako that just a little bit. over the last ten years, and you'll hear a little bit this afternoon, data s up from 108,000 people throughout the world. we've run into this problem a number of times. we doave a number of native americans that are in our data set. they have all been individually opted in, essentially. and in none of these cases has it been challenged. where we e looked to see whether t tribe would challenge it. they felt it was up to the individual to make that decision in these c