Could simply be it's hurricane season and the US government is letting folks know its here for them.
(Hurricane season is June 1st - November 30th); source: www.nhc.noaa.gov...
Or if I was an ad purchaser for the US government I would certainly have FOX News on my radar as its audience tends to not trust the government as is
seen with the opinion shows that lean toward conspiracy theories - so I'd buy ads in an effort to give a positive impression of the US gov.

