The Darien Gap is the thin peninsula of land that connects Central and South America . The Darien Gap remains a natural land barrier of diverse Amazonian forest despite the clearcutting and road building of vast portions of the region. The Pan American Highway extends between Alaska and Argentina except at the Gap, and now some interests would like to fill the gap and link through this land zone which is home to several tribes of indigenous people. As Bob Carty reports, the remaining Indians' lives would be permanently transformed by connecting the continent's superhighway.