This is breaking news. Please check back for updates. Federal Reserve Chair Janet Yellen said Friday an interest rate hike is "probably" appropriate in the coming months if economic data improve. "It's appropriate, and I've said this in the past, I think for the Fed to gradually and cautiously increase our overnight interest rate over time and probably in the coming months, such a move would be appropriate," she said in response to a question at Harvard University. Her appearance comes as colleagues on the Fed's policymaking committee have pointed to an increase in the federal funds rate target sooner rather than ... (full story)