On the 150th anniversary of the Civil War battle at Gettysburg, Richard Moe speaks to a sold-out Minnesota Historical Society event about his book, "The Last Full Measure: The Life and Death of the First Minnesota Volunteers." Guest: Richard Moe: President emeritus, National Trust for Historic Preservation. Former chief of staff to Vice President Walter Mondale. Author of "The Last Full Measure: The Life and Death of the First Minnesota Volunteers." Forthcoming book about FDR's 1940 presidential election.