Mark Kramer : The problem with the "global warming" theory is that it doesn't explain why there are so many people who live in places like New York and London where temperatures have been rising for a long time. Kramer : Russia has bullied , intimidated and violated the sovereignty of its neighbors . There is little evidence that this attack , or others in the past , will induce the Kremlin to back down .
Mark Kramer : Russia and its proxies have a history of shooting down civilian aircraft . Kramer : Russia has bullied , intimidated and violated the sovereignty of its neighbors . There is little evidence that this attack , or others in the past , will induce the Kremlin to back down .