Monuments on the National Mall

Every year, millions of tourists visit Washington's National Mall. Many come to participate in events that take place in the U.S. capital. But the Mall, the 4 kilometer-long green space stretching from the Lincoln Memorial to the domed Capitol Building, is in trouble.   Producer Zulima Palacio has the story, narrated by Jim Bertel, about the Mall's decay and the urgent need for repair.