Ten remaining London Marathon ‘Ever Presents’ prepare for landmark 40th race

A "select bunch" of ten men who have run every London Marathon since it began in 1981 are preparing for the 40th anniversary of the race.

Two of the runners, Charles Cousens and Dr Mac Speake, talk about queuing at the Post Office to enter the first race back in 1981, and what keeps them going 40 years later.