Video: David Cameron: I am not blind to need for new airports Britain must have a bigger airport in the south-east even though building more runways will be "controversial," David Cameron said today. In particular, ministers will carefully consider the proposal by Boris Johnson, the London Mayor, to build a completely new airport in the Thames estuary. However, Mr Cameron said there were still "a range of options and possibilities," raising speculation an expansion of Heathrow could come back on to the table in the next parliament. "I'm not blind to the need to increase airport capacity, particularly in the south-east," he said. We need to retain our status as a key global hub for air travel, not just a feeder route to bigger airports elsewhere, in Frankfurt, Amsterdam or Dubai. Yes, this will be controversial. We will need to take decisions for the long-term - and we will be bringing forward options in our aviation strategy which will include an examination of the pros and cons of a new airport in the Thames estuary.