Nasdaq, S&P 500 also see modest gains
                                
                                
                                    (Newser) -
                                    Stocks are ending moderately higher after overcoming a few early stumbles. The Dow Jones industrial average gained 102 points, or 0.6%, to close at 16,433. The Standard & Poor's 500 index increased eight points, or 0.5%, to 1,961. The Nasdaq composite climbed 26 points, or...