There are definitely some factual issues that need to be resolved here. I believe the Secret Service is looking into this matter too and their investigation might shed some light on this if they take any action against the agent. There are enough eyewitnesses so that we may eventually get some idea of what really happened, although from the descriptions I have read, it may be hard to prove racism beyond a reasonable doubt.

It may turn out that we have two prima donnas here.

Still, if there was any real doubt that the agent was legitimate, the airport should have been closed down because of a security breach.

As a general issue though, I just wonder if the new policy at some airlines (or at least with some customer service agents and pilots) will be that any passenger, especially one with an accent for foreign features, which has a customer service issue with the airline will be considered a security risk.