Is Biden making a terrible mistake in Afghanistan? 

With the United States withdrawing and cities falling to the Taliban in Afghanistan, I wanted to found out for this week's #BritainDebrief for the Atlantic Council what Rory Stewart, former MP and Secretary of State for International Development thought about the crisis.

What does the Taliban takeover mean for Afghanistan? What does it mean for Britain and other NATO allies? And is the United States making a terrible mistake? Stewart, a former resident of Kabul where he pioneered the work of the Turquoise Mountain Foundation, who vocally opposed the Obama-era "surge" in Afghanistan, thinks yes.