Morning Movers: Salesforce, Zynga, Dollar General

June 4 (Bloomberg) -- Bloomberg's Scarlet Fu, Sara Eisen and Tom Keene highlight the news you need to follow for today's trading. They speak on Bloomberg Television's "Bloomberg Surveillance."

Carson Block Says 'Never a Great Time' to Be Short Seller
07:38 - Carson Block, founder and chief investment officer at Muddy Waters, discusses today's collapse of China Huishan Dairy Holdings Corp. and the challenges associated with short-selling. He speaks on "Bloomberg Daybreak: Americas." (Source: Bloomberg)
  • Carson Block Says Huishan Report Started Chain Reaction
  • Citi's Tague Says Capital Markets Wide Open for M&A
  • Oppenheimer's Levitt Says Stocks Still Cheap to Bonds