"Silicon roundabout"
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Tech City: Can the UK's 'Silicon Roundabout' deliver?

28 March 2014 Last updated at 23:43 GMT

The government launched its Tech City initiative in east London years ago to try to encourage a cluster of start-ups and new technology businesses.

But does the UK have the computing skills, the drive and staying power to create global tech companies?

Newsnight's David Grossman reports.