The evolutionary biologist Richard Dawkins found himself at the centre of controversy on Sunday when he questioned the motives of Ahmed Mohamed, the 14-year-old boy who was arrested and detained in Texas when a teacher thought a clock he had made was a bomb.

Dawkins did not dispute that Mohamed should not have been arrested, but questioned whether the boy had truly "invented" the clock, as has been reported. He tweeted:

- Richard Dawkins (@RichardDawkins)

If this is true, what was his motive? Whether or not he wanted the police to arrest him, they shouldn't have done so https://t.co/LtOFAAmVxK ...[Continue reading on the Guardian]