Following The Money
According to sources familiar with the case, a former or current executive with one of the oil companies named in the investigation has been helping investigators: “a whistleblower,” in the words of one knowledgeable source. As previously reported in NEWSWEEK, the Justice Department suspects that Giffen, a longtime adviser to Kazakh President Nursultan Nazarbayev, may have violated the Foreign Corrupt Practices Act by transferring money to senior Kazakh officials from oil companies that, in return, received oil concessions in Kazakhstan....