The “Doomsday Clock,” a symbolic measure of humanity’s proximity to global catastrophe, has been reset to 89 seconds before midnight, the closest it has ever been.

The Bulletin of the Atomic Scientists moved the clock forward by one second due to heightened nuclear risks, climate change, biological threats, and unregulated advances in technologies like artificial intelligence.

Guest: Dr. Daniel Holz - Chair of the Science and Security Board for the Bulletin of the Atomic Scientists

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