London Tube rides go high tech

Commuters travel in a carriage on an Underground train in London, England.

Extreme hairdo owner and London Mayor Boris Johnson announced big changes this week for London's subway system, the Underground. Besides train service running 24 hours a day, Tube riders will soon be able to enjoy WiFi service. Also coming: a way to pick up things you bought online in old ticketing offices. BBC tech correspondent Mark Gregory tells Marketplace Tech about the new changes.

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