Wellington airport extension 'fundamentally flawed'

A fresh report into Wellington's controversial 300 million dollar runway extension says the airport's business case is `fundamentally flawed'. Kathryn Ryan speaks to Oliver Lamb of Sydney based Ailevon Pacific Aviation Consulting. His new report, on behalf of the Airline industry's lobby group Barnz, says previous pro-extension reports have been fundamentally flawed, inaccurate and overly optimistic.