sheryl sandberg stifel analyst says excludeing a major caning they are looking at reputational turn aroundraught with execution risk. sandberg dpoiing the reports of mismanagement. saying to suggest we weren't interested in knowing the truth or wanted oh hide what we knew or tried to prevent investigations is simply untrue now there are fwroeing calls for regulation senator mark warner saying he is disappointed with facebook management. >> i think there are ways we can find common ground they have to come to the table so far what they've said is yept to work with you but getting to specifics, there is not a lot of give on their side the notion that the wild wild west days of no regulations at all, no fward rails, just can't exist any longer. >> and yesterday warner fellow exactic senators be klobuchar, blumenthal, corns and hirono wrote the department of justice and urging a investigation into facebook for hiring political consultants to spread disinformation about people criticizing president bush but jp morgan's doug and muth says he doesn't think "the new york times" expose will make re