American political economist, professor, author, and social media sensation Robert Reich teaches his final "Wealth and Poverty" class to 1,000 students at UC Berkeley, ending a 40-year career that reached 40,000 students. One thousand fill the biggest lecture hall on the UC Berkeley campus, the last class to receive Reich's wisdom and exhortations not to accept that the world has to stay the way it is. His belief in the next generation's ability to take on the fight is inspiring.