US Federal Reserve launches new round of quantitative easing

[idiotstockinvestor]

http://www.guardian.co.uk/business/2...itative-easing

What exactly does this "quantitative easing" mean besides that it's only going to devalue their currency.

How does a country invest in it's own bonds? Am I wrong or is this just a round-about/clever way of saying "we're printing more money". They can't spend money that they don't have, so the only way is to print more in order to buy the bonds right? I say this because I've read a lot of references after the announcement about printing more money.