U.S. Secretary of State John Kerry (C) walks under a banner about the environmental impact of manufacturing during a tour of the Kazakhstan Temir Zholy locomotive plant in Astana November 2, 2015. Kerry reaffirmed U.S. interests in Kazakhstan on Monday in talks with veteran leader Nursultan Nazarbayev who has lured huge Western investments to his Central Asian state while keeping it in Moscow's political orbit. REUTERS/Brendan Smialowski/Pool