"The deteriorating security situation in Afghanistan is turning up in a new way: The cost for U.S. personnel to take a three-mile helicopter flight to Kabul’s airport is surging"

BB:

it’s too dangerous for Americans to drive to the airport, so helicopters are needed.

...

if the new rate takes effect “it will literally be cheaper to fly halfway round the world and return to Kabul than to travel three miles from Embassy Kabul to the Kabul airport,”