I could also save thousands of lives. Maybe if we stopped all people with Down's syndrome from procreating we could eliminate that disease. Or if we killed all those with cystic fibrosis at birth it would save a lot of heartache.

It doesn't work like that with Down's syndrome - it's people who haven't got it who have Down's syndrome babies. But of course wer're working hard as a society to eliminate people with Down's syndrome in other ways. Plus people with cystic fibrosis and a lot more...

Down's Syndrome is not "a disease". It's a way of being human.