4.5K views · 28 reactions | Bob Sands and Mike Boettcher are investigative journalists who have covered the Karen Silkwood case for 50 years. Most recently, their hunt for clues landed them in a warehouse, sorting through packed storage crates. Could the never before heard audio tapes they found blow a decades-old case wide open? Stream “What Happened to Karen Silkwood?” from “IMPACT” by Nightline on Hulu. New episodes drop every Thursday. | Nightline | Facebook

Lost tapes and new discoveries in a mysterious car crash that killed a young mother in 1974. Was it an accident or something more sinister? Karen Silkwood’s story fascinated generations, even inspiring an Oscar-nominated film starring Meryl Streep. This week, “IMPACT” by Nightline goes inside a renewed investigation into Karen Silkwood’s death, unearthing never before heard audio recordings with law enforcement, plus a hi-tech examination of evidence, and the story from one investigator who says