Biden promised ISIS-K will 'pay.' Having no US troops in Afghanistan makes that harder

As the Biden administration grapples with the challenge of carrying out counterterrorism missions in Afghanistan without US boots on the ground, CNN has learned new details about last Sunday's drone strike on suspected ISIS-K fighters in Kabul that some officials say provide insight into the obstacles ahead for military and intelligence officials tasked with fulfilling President Joe Biden's promise to make the terror group "pay" for its deadly suicide attack in Kabul.