The SEC recently filed a lengthy civil complaint against two Och-Ziff executives: Michael Cohen, who headed Och-Ziff’s European office, and Vanja Barros, an executive responsible for Africa-related transactions, charging them with participation in a massive bribery scheme in Libya, Chad, Niger, Guinea and the Democratic Republic of Congo. Last year, Och-Ziff settled with the Justice Department and the SEC, and agreed to pay fines and...