US releases unseen footage of nuclear tests

The US has begun to declassify and release thousands of films of above-ground nuclear tests unseen for decades. Scientists say the newly released films offer a more accurate measurement of the power of nuclear blasts.

    The US has begun to declassify and release thousands of films of above-ground nuclear tests unseen for decades.

    Scientists say the newly released films offer a more accurate measurement of the power of nuclear blasts.

    Al Jazeera's Tom Ackerman reports from Washington, DC.


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