 News that's putting a smile on Wall Street's face today, the Commerce Department's reading of May core inflation, the one the Fed follows the most closely, shows just a 0.1% increase month to month and a 2.6% rise year to year. That 2.6% is the smallest increase in inflation in more than three years. Wall Street sees cooling inflation as a green light for the Fed to start cutting interest rates later this year. Main index is higher.