Volatility has returned to the stock market, and what the market gave investors on Monday, it took away on Tuesday. As we’ve seen for the past several trading sessions, investors appear to be focused on the coming news on interest rates from the Federal Reserve later this month. Many fear that despite mixed talk from public officials, the Fed might nevertheless choose to make a rate hike, and that could send stocks into a full-blown correction of the sort investors haven’t seen very often over the past several years.