Heathrow Airport unveils third runway plans

Heathrow Airport has unveiled three options for a new runway, saying each one would be "quicker and cheaper" than plans for a rival hub airport.

The airport's submission to the Davies Commission, which is looking at raising airport capacity, outlined a runway to the north, north-west or south-west of the existing airport.

It said fewer people would be affected by noise than were currently but environmentalists have criticised the proposals.

Richard Westcott reports.