Secretaries of Agriculture -- 30 Leaders; 150 Years; looks at the history of USDA from the viewpoints of its nine most recent Secretaries. Each shares reflections on his or her time at USDA and then presents ideas about future challenges for USDA and American agriculture. This 16 minute film explores the rich history and prominent role of USDA in American life; and why it continues to be known by the name given it by its founder; Abraham Lincoln: The Peoples Department.