Robert Ballard

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Preview: Unknown America
00:34 — With over 50 percent of our nation lying underwater, huge discoveries await, says explorer Robert Ballard. Lara Logan's report will air Sunday, August (more…)
Preview: Child Suicide Bombers
00:37 — Lara Logan reports on the recruitment of child suicide bombers in Afghanistan and Pakistan and one psychologist's fight to rehabilitate youth trained (more…)
Preview: The Unknown America
00:34 — With over 50 percent of our nation lying underwater, huge discoveries await, says explorer Robert Ballard. Lara Logan reports on Sunday, May 10 at 8 p (more…)
Exploring the Edge of Existence
27:56 — Nobel Laureate John Mather and Nat Geo Explorer-in-Residence Robert Ballard discuss how technology expands the limits of the known universe.