<p>In 1991, Vladimir Yakunin, a Soviet diplomat and KGB officer, returned from his posting in New York to a country that no longer existed.<br>The state that he had served for all his adult life had been dissolved, the values he knew abandoned. Millions of his compatriots suffered as their savings disappeared and their previously secure existences were threatened by an unholy combination of criminality, corruption and chaos. Others thrived amid t...