these guys say they need another 5-15 years.i guess i wouldn't see this happen in my life!!!it's such slow program.

why the United Nations can not set up a project and ask the most clever people on the globe to work this out!it can not be a very difficult program,we can fly now to the moon and back,but why we can not regenerate our teeth?

i feel so disappointed and i don't believe this would happen in 50 years!