Sooner or later Obama will try and take these balances for the greater good. It might take the form of a capitol asset tax, an inactive balance tax, or some other scheme
It would have to be under martial law since any law that even breathes an idea like that will cause Category V winds blowing that money out of the US and into anywhere else on the planet.
The grab could be accompanied by some form of a punitive transfer or severance tax that would make it prohibitive to transfer funds out of the country. Companies would be wise to be moving balances now to get them out of Obama's reach.