South Korea's researchers have taken egg cells from volunteer women, removed the nuclei from those cells (which contain only half of the genetic complement required to make a human being, since the other half is provided by the sperm), and replaced each nucleus with one taken from one of the volunteer's body cells (which contains a full genetic complement).

ECONOMIST: An embryonic development

Labour's boldest step has been to complement the internal market with an external one.

ECONOMIST: Health in Britain

But Luis Moreno-Ocampo, the ICC's chief prosecutor, insists that peace and justice, far from being antagonistic, can actually complement one another.

ECONOMIST: An end in sight? | The