. >> one case that is getting attention is a woman having gss. i won't try to pronounce the disoos. it leads to a painful death. she had invitro and basically looked at the embryos that were in the dish, and they figured out which ones did not have the gss gene, and they discarded those embryos, and she went on to have healthy babies who would not have the disease. >> it's morally controversial to destroy an embryo, when you pick up the one that is will have a horrible disease or live a shortened life span, it seems to be the ethical thing to do to avoid creating that burden. that type of screening embryos, that use of ivf i support that. >> we have other things, breast cancer genes, increasing the likelihood of severe breast cancer. where do you draw the line? that's the big question. i'd say in? ? when you talk about a certainty of disease, you see flawed genes, you have a child with terrible conditions, rarer but dead for the baby, i think there you can screen. we get requests to say, "hey, how about boy or girl?", we don't do it at my schools, a lot of others they don't. >> some

adsb is a way of using the gps navigation or gss navigation to fly rather than just based on ground-based equipment. so what next jgen was, during t time i was work on it, the idea we're working on technology in the faa, air traffic control was designed and built back in the 50s and 60s. so it's really tough to say we're still working on this old technology. but nonetheless, we're working on those backs of the ancestors. it's time to move up and upgrade into something new. that's what we're trying to do with nexgen. >> would the airlines have to pay for this, the faa has to pay for this? >> the faa has to pay for it. it's about a 40 to $50 billion investment. congress did approve it. and the faa started the project and they've been working on it. but the attorney general or i think it was the attorney general report just came out recently saying that the faa was as far back as 13 years on some of these projects trying to get 13 years past the schedule to not get them done. some things are on schedule, some things aren't. we'll keep going back to congress to keep asking for more money. con