Those vehicles were left behind by the Afghani armed forces and were no longer US assets.

Of course, our failure to predict the afghani military's collapse is a huge error but that just proves that even world's best and most well-funded intelligence agency is not foolproof.

You can’t tell me with a straight face though that there wasn’t a report on someone’s desk that predicted exactly that - the Afghani military collapse. It was likely buried because it didn’t support whatever narrative was required at the time. So.. well funded? Absolutely and with a cherry on the top. Best? Nope. Way too infused with agendas and politics. No offense to the great people who work there.

They knew it would collapse, just not so quickly.

>Of course, our failure to predict the afghani military's collapse...

It was obvious to people who had any inkling of Afghanistan.

First, the US created an Afghani army that was dependent on US weapons and logistics, but stopped helping to maintain it even before the withdrawal was done. What does one expect to happen to an airforce when one stops maintance?

Second, every intelligence estimate predicted the Taliban would eventually win post-withdrawal (since they still got a state to support them), and the Afghanis knew about those estimates. Why should a sane Afghani keep fighting, when they could switch sides and live? To make Biden look better?

Ultimately, there was a political decision to leave Afghanistan, and the intel was adjusted to the decision rather than the other way around.

>Second, every intelligence estimate predicted the Taliban would eventually win post-withdrawal (since they still got a state to support them)

Which state would that be?

Pakistan, duh. Pakistan-Taliban links were widely known for decades.