How were they discriminated against? They weren't denied a seat or transport. There's nothing demonstrating that they were given less service than any other passenger. What is the basis for the suit? Compensatory damages for hurt feelings based on wild assumptions? Maybe some recovering drug addict should sue radio stations for every song that alludes to drug use.
In her report, Cundiff wrote, "The statement I made on Flight 524 was not racist or discriminating, and I am offended that because I have white skin suddenly I am a racist. Maybe those that run around pointing fingers yelling racist should stop and turn that finger around."
She's a FReeper? ;^)