The former Massachusetts governor's Republican rivals allege that Bain Capital's specialized brand of investment is 'hard to justify' and 'inherently wrong.'
|Carrier workers' rage over move to Mexico caught on video|
|Volatile oil spikes 12% in biggest gain since 2009|
|Women coders do better than men in gender-blind study|
|Dow is now down 1,451 points this year|
|Burger King unveils hot dogs February 10|