@CNN: For nearly 2 decades, Grand Canyon tourists were exposed to radiation beyond the federal limit, safety manager says https://t.co/8wHmVYAkPi https://t.co/3RsMSk8IEk

February 21, 2019 / The Arbiter / CNN

@CNN: For nearly 2 decades, Grand Canyon tourists were exposed to radiation beyond the federal limit, safety manager says https://t.co/8wHmVYAkPi https://t.co/3RsMSk8IEk

For nearly 2 decades, Grand Canyon tourists were exposed to radiation beyond the federal limit, safety manager says https://t.co/8wHmVYAkPi pic.twitter.com/3RsMSk8IEk

— CNN (@CNN) February 21, 2019

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