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Google to buy 'machine learning' firm Nest Labs

13 January 2014 Last updated at 23:50 GMT

Google has announced plans to buy thermostat maker Nest Labs for $3.2bn (£2bn), continuing a string of recent acquisitions.

Google said the cash deal was expected to be completed in the next few months.

Newsnight technology editor David Grossman told the programme that this confirmed that Google was no longer just a search engine company.

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