> Zeng says, however, that the mice seem to have a high > death rate, with some dying after just two days, and > others displaying physical abnormalities, d

> Zeng says, however, that the mice seem to have a high > death rate, with some dying after just two days, and > others displaying physical abnormalities, details of > which the team would not reveal. This is a bit troubling. Not that the mice die after a few days, but that the researchers are withholding this information.