This from Brad Setser’s blog….

Incidentally, the $8.7b in average weekly purchases of Treasuries over the last 8 weeks would – if sustained — be enough to finance a $454b budget deficit without selling a single Treasury bond to private investors. Sometimes I think the US should drop the façade of auctioning off Treasuries and just negotiate private placements with the People’s Bank of China and the Saudi Monetary Agency.

What’s more, all this financing was provided more or less unconditionally, with the United States creditors taking on the risk of future dollar depreciation. Further dollar depreciation against the euro – and, perhaps more importantly, the risk of further dollar depreciation against their own currencies.

It goes without saying that this flow is far, far larger than the $30b or so sovereign funds committed to troubled US financial institutions in December and January ($40b if UBS is considered a US financial institution). Yet it has attracted far less attention.