On the radio just now: scientists have learnt how to steer flying pigeons by remote control. Sweet. Don't tell bin Laden.

They have suggested that this will be of invaluable help at some point in the near future in some unspecified way.

Suggestions? A new Olympic event for 2012 in which competitors must re-enact the Death Star destruction sequence from the first Star Wars film, substituting pigeons for x-wings? Just a thought.