Quote from risktaker:
You can't really buy a large portion of any 1 country. Population will vote for hiking up the corporate tax and the new buyers will get screwed holding a paper bag they can't get rid of without a large loss.
What those countries/funds *can* do is stop funding the US government's appetite for digging itself into the ground with massive debt.
ol' scambankster redshields bought the whole of great britain pence to the pound back when napoleon lost its last at waterloo.