Lab-Grown Model Brains In an Austrian laboratory, a team of scientists has grown three-dimensional models of embryonic human brains. These “cerebral organoids” are made from stem cells, which are simply bathed in […]
Is Assad a rational actor?

Syrian President Assad invokes logic to deflect accusations of chemical-weapons use. On Monday I wrote about Syrian President Bashar al-Assad invoking logic to refute the charges that his government carried out chemical-weapon attacks. […]