Lloyd Blankfein, chief executive officer of Goldman Sachs, checks his bank's profit every day, prefers voice mail to e-mail, and makes unscheduled calls to board members at times of market "uncertainty." His testimony at the insider-trading trial of Raj Rajaratnam was intended to bolster prosecution claims that one of those board members, Rajat Gupta, who joined in 2006, passed on information he learned from the board.
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