They have done the tests, but at the same time our own Gov't and Met Office are saying it wont be safe to fly for at least 24 more hours.
I think this is a ploy by GB to win a few more votes. If he keeps UK airspace closed for another 72 hours or so and launches a huge floatilla of ships to rescue stranded Brits from Spain or wherever, he thinks he is going to look like a one eyed Superman and get re-elected. ******.