Cohen clams up

... as nine current and former SAC employees have been implicated or charged with insider trading while working at the Stamford, Conn., fund. Don't even ask: Billionaire Steve Cohen, the subject of a criminal investigation, invoked his Fifth Amendment ...

http://www.nypost.com/p/news/business/cohen_clams_up_P85liEdN8Xaqgpg9qRhSxM?