A fundamental question

HI traders,
I want to know the reason of the moves in the market.For example today we see a very strong bearish market and most of the pairs is affected by dolor and I think because the USD was strengthen other pairs was weaken but about 5 hours ago the market changed direction and It seemed that the USD is got weaker and other pairs start to rise.
But how can the market change direction and move strongly?Is that because of any news?
and my other question is with the "Fed Chairman Bernanke Speaks" news .How long does the news affect currencies and is it just released and finished or the speaks last for hours or maybe the reason of the moves in the market is affected by that news yet?

Thanks

The market changed direction because nobody wanted to be caught short during the EFSF vote in Germany.

actually , I got stop out on eurusd - gbpusd and usdchf just because of the EFSF vote in Germany? You mean that EFSF vote in Germany will affect others currencies?you know, I just check today's calender to trade but there was nothing about EFSF vote in Germany .So , where can I find out about that?

Thanks

The events in Europe have a big impact right now on all currencies. To find about the vote it is enough to read the headlines on Bloomberg or watch TV.

Is the changing direction of market depends on world's economy.