Heathrow unveils £49 bn expansion plan for third runway

London's Heathrow Airport on Friday unveiled a £49-billion ($65 billion) expansion plan, including the costs of building a long-awaited third runway, approved by the UK government after years of legal wrangling. The government is expected to also back expansion at Gatwick airport, south of the capital, in October -- having recently approved upgrades to London's Stansted, Luton and City airports.

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