Fourth in a series of half-hour documentaries about progressive organizing, "Winter Soldiers" is an inside look at a peace protest held in front of the White House on December 16, 2010. Led by Veterans For Peace, 135 people stood in swirling snow and blistering cold to bring an end to the occupation of Afghanistan. They included Pulitzer prizewinning author Chris Hedges and Pentagon Papers whistleblower Daniel Ellsberg.