This will have a profound impact on stem-cell research. The opponents of the research will feel themselves to be vindicated.

271

This is a tragic turn.

240

Is this our version of W.M.D.?

158

We depend entirely on the truthfulness of the scientific community. We must believe that what they are showing us and what they say has been demonstrated is worthy of our concern and attention.

141

In the bioethics community, this is widely understood as utterly out of the realm of coherent human subject protections and a failure in the duties of a tenured professor.

139

This is powerful work and we live in an age that many tools and technologies can be turned into weaponry.

138

You always have the problem of dual-use in every new technology. Steel can be used to make sewing needles or spears.

137

The technical challenges were solved in theory but not in practice.

110

The fact that this raised the hopes of patients and then did not deliver that promise has special poignancy. Science should be based on truth.

86