It's still too early to tell if recent market turmoil has made a September rate hike more or less compelling, Federal Reserve Vice Chairman Stanley Fischer told CNBC on Friday. Investors are watching the Fed closely for signs of an impending tightening—as international and U.S. markets swung wildly this week, some questioned whether the conditions were anywhere near appropriate. "I think it's early to tell: The change in the circumstances which began with the Chinese devaluation is relatively new and we're still watching how it unfolds, so I wouldn't want to go ahead and decide right now what the case is—more ... (full story)