In a SPIEGEL interview, leading Russian politician and potential Putin successor Vladimir Yakunin discusses the president's plans, the Bush administration's "political arrogance" and the need for nations to consider the interests of other countries when defining their own.Vladimir Yakunin, 59, who worked as a diplomat at the Soviet mission to the United Nations in New York and later as the Russian deputy minister of transportation, became the president of the powerful Russian railroad corporation in 2005. He is considered a possible presidential candidate. SPIEGEL: You have known (Russian President) Vladimir Putin for a long time. In fact, you had neighboring...