Japan has proposed a plan to buy American dollars and sell their Yen to weaken the Yen. Japan has a recession the past year, similar to ours, and their economy is still trying to recover from it.
If Japan was to buy other currency and sell their own, eventually the Yen will begin to lower in price which would help their economy tremendously. Now for this to work Japan is going to need global cooperation and I believe that will be hard to find due to the fact most countries are facing bad recessions right now. I thought this idea was interesting, but at the same time kind of stupid. I don't really understand why Japan would do this unless it was actually their last resort to save them from inflation, debt, etc.