michael darda: it comes down to the fed.volatility, but it comes down to what the federal reserve is doing relative to other central banks. that is what will drive currency markets over the longer haul. michael: you have to worry a little. when he thought the dollar was the yen was- overvalued, he said he would like to see a weaker yen. that was followed by bill stronger yen is one of the biggest problems we have. the dollar got so strong against the yen that the u.s. and other countries had to prop up the yen. if traders think the u.s. will do something about it and keep job owning the dollar, we could have a problem. that is playing into people's minds as the dollar weakens. never seen ahave president that talks so much on twitter, open policies in 140 characters. the more he talks about dollar weakness, will the are get believe him? to see darda we need concrete policy action. we have three open fed board seats. and a replacement for fed chair yellen next year. assuming he wants to replace them. that good have an influenc