The dollar's getting stronger — and that could be bad news

The dollar has been rallying against other major currencies over the past week. 
But some think it could be strengthening for negative reasons.
Follow the dollar in real time here. 
Whether a strong dollar is a good or bad thing remains highly debated among economists. But there is generally one consensus among them — it's important to look at why the dollar is moving.
The greenback has jumped more than 1.5% against the yen and euro since last Monday. And it's made even bigg