The only announcement I'd believe from him that was swift and with great resolve would be if he announced he was sending the Navy down to help China secure Taiwan
That little flypast may be aimed more at precisely that. That many strategic bombers can let loose a lot of anti-shipping missiles, maybe enough to make the USN break sweat swatting them down if it came to it - maybe enough that Biden looks at the potential costs and decides it's not worth risking USN assets to annoy his constituents and lets them have Taiwan.
The only announcement I'd believe from him that was swift and with great resolve would be if he announced he was sending the Navy down to help China secure Taiwan
That little flypast may be aimed more at precisely that. That many strategic bombers can let loose a lot of anti-shipping missiles, maybe enough to make the USN break sweat swatting them down if it came to it - maybe enough that Biden looks at the potential costs and decides it's not worth risking USN assets to annoy his constituents and lets them have Taiwan.