WASHINGTON (TND) — The "Doomsday Clock," the metaphorical measure by theBulletin of the Atomic Scientists of how close human kind is close to self-annihilation, remained set at 90 seconds to midnight.

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Every single day, humans rely on hundreds of hidden clocks. GPS location, Internet stability, stock trading, power grid management ... all rely on atomic clocks in order to work. Many of those clocks ...