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UFOs regularly spotted in restricted U.S. airspace
Facial recognition use on the rise despite possibility of errors
Netanyahu says Israel will do "whatever it takes to restore order"
Fauci says new mask guidance "based on the evolution of the science"
Behind the Secret Service's veil of secrecy
Ernst, Gillibrand hail bipartisan deal to address military sexual assault
CBS News poll: Republicans weigh in on Liz Cheney
Damon Weaver, kid reporter who interviewed Obama, dies
Nursing school student graduates amid health setbacks
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Sea ice at the poles is melting at record pace
Climate scientists say polar sea ice is rapidly melting and 2016 will go down as the hottest year on record. CBS News contributor and theoretical physicist Dr. Michio Kaku joins CBSN to discuss what's behind the worrisome trend.
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