Arianna, Anderson Cooper & Sean Penn On The Crisis In Haiti (EXCLUSIVE VIDEO)

The Huffington Post celebrated its 2010 Game Changers Thursday evening at Skylight Studios in SoHo. Sean Penn, who was named a 2010 Game Changer, was honored by Anderson Cooper for his work in Haiti. Cooper noted Penn's intense commitment to the people of Haiti, even after the cameras were gone. Arianna introduced the men, who made pleas for helpin the people of Haiti.