Of course the headhunters themselves have a financial incentive to providethis answer - since they get a commission from recruiting senior directors, and are therefore on board the big-pay gravy train.
But if the Fed was a truly global central bank, it would provide liquidity globally and of course the Fed mainly provides this liquidity into the U.S. economy.
Doing this on every flight would of course be prohibitive, but it is worth considering whether we are doing enough to provide flights enough marshals as a last line of defense.