It’s all very well to say one scandal shouldn’t set back the field, but Hwang’s team was the field. If his results are false, then after seven years of attempts worldwide no one has succeeded...

This is wonderful news for the many thousands of suffering patients who can benefit from umbilical cord blood stem cell treatments.

Senator Smith would do well to act as we did and read the decision before commenting on it. As with other ‘statutory construction’ rulings, this decision leaves Congress itself free to decide what its laws...

It’s becoming harder and harder to argue that embryonic cells have uses that adult cells do not.

To win public support and government funding, advocates for human cloning and ESC (embryonic stem cell) research have long made hyped claims and exaggerated promises to legislators and the public.

We are grateful to Congress and the president for enacting this legislation without further delay.