Because troops can't collect them and insists the Taliban will let them through All remaining Americans in Afghanistan are being told to make their own way to Kabul airport now to be flown home and are being told that it is safe for them to make the journey despite widespread fears on the ground that the Taliban will stop them, hold them hostage or kill them.
There are still some 11,000 Americans in Afghanistan waiting to be flown home. Some are at the airport but some are too afraid to make their way there through Taliban-controlled streets. Some say they have tried and have been turned away at checkpoints.
There are also tens of thousands of Afghan nationals desperate to get out but who do not want to present themselves to the terrorists they worked against for years.