Time now for tonight's closing argument — on an important day for a country at war. President Obama marked Veteran's Day in South Korea, where he is five days into an Asian tour. "On this day, we honor every man and woman who has ever worn the uniform of the United States of America," Obama said. "We salute fallen heroes, and keep in our prayers those who are still in harm's way — like the men and women serving in Iraq and Afghanistan." Back home, Vice President Biden laid a wreath on the tomb of the Unknown Soldier at Arlington National Cemetery, and parades were held in cities around the country. But more than 100,000 veterans are homeless tonight… and thousands more struggle with wounds physical and emotional. So tonight we ask you: Is the United States doing enough for its veterans?