Guy LeBas, chief fixed-income strategist at Janney Montgomery Scott LLC, discusses the June jobs report and the outlook for the U.S. economy.   U.S. employers added 18,000 workers in June, less than forecast and the fewest in nine months, while the unemployment rate unexpectedly climbed to 9.2 percent, indicating a struggling labor market. LeBas speaks with Betty Liu on Bloomberg Television’s "In the Loop." Warren Buffett, chairman and chief executive officer of Berkshire Hathaway Inc., also speaks.