on twitter,

NAS acknowledged Flag Day when under Admiral Rogers

in 2015, 2016, and 2017

No acknowledge of Flag Day by NSAgov on twitter (2020)

No acknowledge of Flag Day by NSAgov on twitter (2019)

No acknowledge of Flag Day by NSAgov on twitter (2018)

https://twitter.com/NSAGov/status/875083557126975489 (2017)

https://twitter.com/NSAGov/status/742735374993096704 (2016)

https://twitter.com/NSAGov/status/610085542168932354 (2015)

No acknowledge of Flag Day by NSAgov on twitter (2014)

and 2017 flag looks to be same flag often used by Q