The Iraqis say that they produced just ten litres of concentrated ricin before giving up when tests of its dispersal were unsatisfactory.

ECONOMIST: A sick inventory

It is among the first hit products in a wave of hundreds of new DNA diagnostic tests that will overrun medicine in the next five to ten years.

FORBES: Will You Get Cancer?

Among ten-year-old black children 41% fail their basic reading tests, and so do 38% of the Latino pupils.

ECONOMIST: Urban life: In Dallas, a new drummer | The