leaders have said americans outside of kabul will be granted safe passage as long as they have proper documentation, even if that is beyond august 31st. but, from firsthand stories from americans and afghan allies on the ground too secret and controversial bipartisan congressional trip to the kabul airport, a different reality is becoming clearer on the ground. correspondent trey yingst is in doha, qatar tonight with the story. good evening, trey. >> bret, good evening. the clock is ticking as the world awaits american evacuations to wrap up and u.s. troops to go home. still though scenes of devastation happening outside the airport in kabul. >> afghan civilians weighed through sewage outside of kabul's airport. lines of people as far as the eye can see with paperwork in hand. many locals and foreigners have the correct documents to board flights out of afghanistan. but can't make it to the airfield due to taliban checkpoints and brutality outside the gates.