Investigative journalist Seymour Hersh in the documentary 'Cover-Up' Netflix EXCLUSIVE: Going back to the 1960s, investigative journalist Seymour Hersh has broken story after story of immense national and international importance: the My Lai Massacre during the Vietnam War, the testing of chemical and biological weapons on U. S. soil, the Abu Ghraib scandal, Watergate, the CIA meddling in domestic politics, and much more. At age 88, Hersh is still working scoops, as seen in the documentary Cover-Up, the award-winning film directed by Laura Poitras and Mark Obenhaus that’s a strong Oscar contender.