Well, I hesitate to term these "professional" conferences, because by my definition unionized people cannot really be considered professionals. But, putting that aside, here's Academic Conferences: the Oppressed Versus the Oppressors. One quote:
A preliminary program for the National Council of Teachers of English conference (Nov. 18-21, Orlando) lists a session, "Leading Out Our Profession Through Advocacy," that blames Ronald Reagan (whatever happened to blaming Bush?) for scripted lessons and mandates handed down to classroom teachers in the cause of school reform: "During the Reagan years, systems and structures were set in place so that corporate giants and government would have more control over education," resulting in policies such as No Child Left Behind and now even the Obama Race to the Top. The NCTE workshop's answer to all that? "Critical reflection, dialogue, and action toward an educational reform and advocacy that enables teachers and learners to collaborate, explore, engage, and renew ourselves through positive, empowering, professional advocacy."
If I can peer clearly through the edubabble, I think this is a union training session. Not certain, though. By the way, what's a "learner"?