Yahoo! News – Experts Warn of Japan Buying U.S. Dollars: “Tokyo bought an astounding $172 billion last year to keep the yen from strengthening too much against the greenback. The push only accelerated in January, when Japan snapped up another $67 billion.
The purchases are so large they are effectively subsidizing record U.S. budget and trade deficits, keeping American interest rates low and worrying some experts that a painful shock will hit if the spending spree stops. “