I haven’t received a boarding pass for the connection flight. Rather, I had to go through customs and security again upon landing and then check in again for the 2nd lag of my journey. This was not communicated to me by the agent at IAD airport. My US passport did not have a Turkish visa so I would not have been able to re-check in have I not had another passport on me that did not have a visa requirement for Turkey. This was a terrible experience.