This is no surprise. When C-17 aircraft have to launch chaff as they take off from the Kabul airport, you know it's not secure.
And with ISIS (who hates the Taliban) now flexing their muscles, and al Queda also back in town, all those people hanging out at the airport just become rather lucrative targets.
Before too long, you'll start hearing about ransom demands, with a suicide bomb or three going off in that throng.
In short, this is just the beginning of President Asterisk's unbelievably stupid debacle.