The latest research into the link between germs and mental illness -- and what we all need to know.
Tens of thousands of visitors are expected to flood the 6,000-acre Gettysburg National Military Park and surrounding town this week to commemorate the 150th anniversary of the Battle of Gettysburg. The events of July 1-3, 1863, produced more than 50,000 casualties, with an estimated 7,500 soldiers killed. Many historians consider Gettysburg a major turning point of the Civil War after Northern forces turned away a Confederate advance. And in the decades following the conflict, the battleground became a symbol of reconciliation. Diane and her guests discuss the significance of the Battle of Gettysburg and how it’s remembered.
- Adam Goodheart director of Washington College’s C.V. Starr Center for the Study of the American Experience and author of "1861: The Civil War Awakening."
- Ervin Jordan associate professor of history and research archivist, University of Virginia member, Gettysburg Foundation Board of Directors
- Scott Hartwig supervisory historian at Gettysburg National Military Park.
- Drew Gilpin Faust president of Harvard University, historian and author of "This Republic of Suffering: Death and the American Civil War."
- Eleanor Harvey senior curator at Smithsonian American Art Museum.
Photos: Battle Of Gettysburg
Most Recent Shows
The country's 9-1-1 emergency call system was designed for landline telephones. With the growing reliance on mobile technology, experts say it’s out of date. Current gaps in the 9-1-1 system and how it can be improved.
Frank Sinatra was one of the top entertainers of the 20th century. A new biography on the many sides of "Ol Blue Eyes" – his singing career, Rat Pack exploits and legacy in American culture.
The attacks in Mali and Paris point to a broadening battlefield in a war being waged by disparate jihadist groups. The growth of Islamic extremism and the outlook for an international coalition to combat it.