The U.S. Interstate System turns 50 [audio 18min]

It’s the 50th Anniversary of the U.S. Interstate System, and"Living on Earth" takes a ride in a 1951 Hudson along I-95 in Boston. Our chauffeur: Dan McNichol, author of The Roads That Built America: The Incredible Story of the U.S. Interstate System. Along the way we meet a livery driver who remembers the days before the Interstate, and a trucker who makes a pit-stop on his regular cross-country run. ~Visit The U.S. Interstate Highway System at 50 for NPR's multiple short reports on the golden anniversary of federal legislation that sparked an economic and travel revolution.