Hi Mrs D,
In 2010 you had a couple of lengthy discussions on this subject and the conclusion then was that your "agency" was classifying the "talent" as independent contractors in order to dodge payroll taxes, unemployment, and workers comp.
You were given a variety of resources and suggestions, most of which involved turning the "agency" in to a variety of regulatory agencies.
So, here, two and a half years later you have continued to work under the same conditions.
I think, basically, you have nothing to sue for but you still have the option of reporting the practices to the appropriate regulatory agencies.
What bothers me, though, is that you are still working at this. If it was so terrible an affront to you why haven't you just found another line of work since apparently nothing has changed in your industry?
You mentioned back then that the "talent" doesn't make waves because the money is too good. Does that go for you, too?
I don't see you saying no to the assignements.