Author and historian Douglas Brinkley talks about his book "The Wilderness Warrior: Theodore Roosevelt and the Crusade for America." The book tells the story of Theodore Roosevelt's contribution to the early days of the conservation movement. Between 1901 and 1909, TR was responsible for 230 million acres of land being set aside as wilderness. Mr. Brinkley sees this as the most important initiative by a U.S. President between the Civil War and World War I. The interview was conducted at the National Conservation Training Center in Shepherdstown, West Virginia. The Center is part of the U.S. Fish & Wildlife Service. This is Part One of a two-part Q&A.