主播大秀

A trader in the Missouri town of Ferguson, which has been the scene of angry, racially charged protests following the shooting of 18-year-old Michael Brown, speaks of the devastation caused by looting. John Zisser, who owns Zisser Tyre and Auto, says his repair bill will be more than $100,000.

Plus, we hear about the latest step towards a cure for jetlag, and we look back on a century of the Panama Canal. Vicky Mohieddeen joins us from Beijing to tell us about filming in one of the world's most inaccessible places - North Korea. And we catch up with Hitchbot, a robot being carried across Canada by friendly motorists. We're joined throughout the programme by David Freedman, writer for The Atlantic, in Baltimore.