Originally Posted by hyperzulu

There were issues with US passport holders getting visas. Apparently this has now been resolved and US passport holders are once again able to obtain e-visas on arrival. I'm just risk averse in that regard, but it seems a non-issue at this point. My concern would have been over missed connections and cancelled flights. While you don't need a visa to transit through Turkey, if you were stuck in IST for 24 hours waiting for another flight, not being able to leave the airport would have been a major drag.