We're revisiting some of Nat Cardona's most-watched videos this year in this "5 to Know" encore: Back in November, South Dakota's #MethWeAreOnIt campaign made people re-read their screens a few times in confusion. 

On today's 5 to Know with Nat: #MethWeAreOnIt campaign, Chick-fil-A drops some charities, and Hidden Valley's new ranch stocking.


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