American historian and prolific author Stephen Ambrose gained fame for his biographies of US presidents Dwight Eisenhower and Richard Nixon as well as for his bestselling books about World War II, including Citizen Soldiers and D-Day. His works—especially the book Band of Brothers, which served as the basis for a television miniseries of the same name—inspired a renewed interest in the sacrifices of American soldiers. Why have some of his works been criticized? Discuss