Ken Livingstone: The Shard 'will define London'
0:00 / 6:14
The tallest building in Britain and in Western Europe, the Shard, is being inaugurated in London today. Will Gompertz reports and former mayor of London Ken Livingstone, and David Burney, commissioner of New York City's department of design and construction, discuss the attraction and the legacy of the building. #R4today
11 months ago