Occupy Wall Street: What's the Message?

It's a far cry from Tahrir Square in Cairo, but Occupy Wall Street has been camped out for two weeks in Zuccotti Park between the New York Stock Exchange and the site of the former World Trade Center. The self-described "leaderless resistance movement" includes about 200 college students, recent graduates and others protesting a whole set of economic issues, from a lack of jobs to the ties between government and big business. They've endured pepper spray from a senior New York Police commander and enjoyed visits from celebrities, including Susan Sarandon and Michael Moore. They're a presence on Facebook and Twitter, and they're trying to organize nationwide. Will they ever compete with the Tea Party? What's the connection to economic unhappiness in other parts of the world?