U.S. Commerce Dept. @CommerceGov
Congratulations to @NIST and thank you @sciencemagazine for your recognition! — PolitiTweet.org
NISTDirector @NISTDirector
What a nice surprise to close out 2019! @ScienceMagazine recognized a @NIST atomic clock innovation as part of thei… https://t.co/Qf6nsM9rwT