Three years after America’s largest financial collapse since the Great Depression, the country is still recovering. Some banks have received huge bailouts, but countless Americans are still struggling to get back on their feet. A new four-hour documentary, “Money, Power and Wall Street” investigates what has been done (and not done) to secure America’s financial future. Michael Kirk is one of the producers of “Money, Power and Wall Street,” which will premiere on Frontline April 24 and May 1 on your local PBS station. Frontline is produced by our partner WGBH.