We speak with historian Harlan Giles Unger about his latest book, "Improbable Patriot," a biography of Frenchman Pierre Beaumarchais, a multi-talented genius best known to Americans for his plays "The Barber of Seville" and "The Marriage of Figaro" which became beloved operas. This book tells the largely forgotten story of how Beaumarchais played an essential role in our victory over Britain in the Revolutionary War.