120 Years of the Subway Celebrated at the New York Transit Museum

How would you complete the sentence, "The subway is...?" A new exhibition from the New York Transit Museum, The Subway Is... , celebrates 120 years since the opening of the New York City subway by displaying archival photos, objects, and cars from throughout the system's history. Museum curator Jodi Shapiro is with us to discuss some of the surprising history on view in the show, and we take your calls.