TSA video walkthrough of flying without ID: https://papersplease.org/wp/2021/04/08/tsa-posts-video-showi...

TSA ID verification procedures (redacted) for people without ID: https://papersplease.org/wp/2018/05/08/tsa-releases-redacted...

records of how the TSA decides whether to let you fly without ID: https://papersplease.org/wp/2016/06/09/how-does-the-tsa-deci...