The aviation weather code for smoke is FU (from the French word fumée), which is spoken plainly as "smoke" on the Automatic Terminal Information Service (ATIS) and written as FU in METAR reports.

It's national seething and self loathing on full display for all to see...it's the lefts version of burning down the Ghetto on an industrial scale to protest the current state of affairs.

PDJT knows hence his direct response to Carney about it.