Upton Sinclair used to say “it is difficult to get a man to understand something when his salary depends upon his not understanding it.” That might explain why Wendell Potter was able to exist inside the insular world of the health insurance industry for so many years, defending their reprehensible behavior and denying millions the healthcare they so desperately needed. Lucky for the rest of us, Wendell Potter grew a conscience and left the industry.

Now he’s blowing the whistle on his former bosses—and it’s a call all Americans desperately need to hear. In [1] this video from Bill Moyers Journal, Potter talks about his own journey from industry PR man to public healthcare advocate. This is truly as must-watch as must-watch videos get if you care about the future of healthcare in America.

Watch it now.