As panicked Afghans watched Taliban fighters roll into the capital city of Kabul Sunday, sealing the collapse of the U.S.-backed government there, many Americans were left wondering how top Biden officials could have been so wrong in their recent proclamations that Kabul would not easily fall. Just days ago, a U.S. military analysis reported by ABC News predicted that Kabul could fall within 90 days -- not by the weekend. "This is a crisis of untold proportions," Rep. Jackie Speier (D-Calif.) told NBC News Sunday as Taliban militants swept into Kabul. "This is an intelligence failure. We underestimated the Taliban...