As Mr Roh in retirement rode his bicycle round the streets, crowds of tourists would run after him.

ECONOMIST: Roh Moo-hyun

Geek Squad was founded 18 years ago by Robert Stephens, who rode around Minneapolis on his bicycle, helping people with technology problems.

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He rode a bicycle into the nearby of Lincoln for any food that he did not grow in his garden.

BBC: Profile: Theodore Kaczynski