Second Opinion 7.2

Happy Independence Day weekend! Is the deficit no big deal? Maybe not as big a deal as we might think, argues Michael Kinsley. The key to greentech IPOs is money from Uncle Sam. Which of these men knows what they are talking about: John Paulson or Paul Krugman? Pandora founder Tim Westergren tells Charlie Rose that the iPhone almost doubled his streaming music company's growth overnight. Serial entrepreneurs tend to bring the band back together, even when that's not their intention, observes Fred Wilson.