I agree about checking the veracity of dramatic Twitter reports.
In this case, Rep. Michael McCaul discussed this with Chris Wallace today on Fox News Sunday. There’s not a lot of detail (yet), but it’s more than a tweet.
Here is one of many links that have started to pop up:
https://nypost.com/2021/09/05/taliban-holding-6-us-flights-hostage-in-afghanistan-rep-mccaul/
Thanks for the additional details. Much appreciated.