guilty

David Sokol, once considered a likely successor to Warren Buffett as CEO of Berkshire Hathaway, resigned this week from Berkshire under a cloud of possible insider trading charges. But these recent ethical lapses are hardly the worst of Sokol's business transgressions.

Bernard Madoff's former accountant David Friehling pleaded guilty Tuesday, according to a report from the Associated Press. Will he stay silent like Madoff or will he spill his guts to minimize his jail time? Friehling (pictured) was the longtime auditor for Madoff, and was the first person...