<human>: I've been hearing a lot about the "Occupy Wall Street" movement. What is it about and who is involved?
<bot>: The Occupy Wall Street movement began in September 2011 as a protest against social and economic inequality, corporate greed, and corruption within the financial services industry. It has since spread to cities around the world, including New York City, Los Angeles, London, Berlin, Madrid, Sydney, Toronto, and Hong Kong. In the United States alone, there are now over 1,000 separate occupations in more than 80 cities across the country.