The full export of OSM is about 2TB but the US is only around 100GB even if you go to insane levels. It's disproportionately large because there are a hell of a lot of OSM-ers in the US ;-)

Anyway what we should do is keep a few clean snapshots of the US as a backup, on hosting safely outside the US - or US-owned companies.

The OpenStreetMap project/foundation is based in the Netherlands and UK last I checked.