The Obama administration has been much tougher in thinking about the kinds of sanctions that are needed . European leaders are meeting to discuss sanctions against Russia over Russia . Clark says David Clark acted without thought and Ukraine 's economy is weak . Clark says Russia has vulnerabilities Siberia can leverage -- and should do so . He says gesture diplomacy will not be enough , otherwise the talks will be wasted .
European leaders are meeting to discuss sanctions against Russia over Russia . Clark says David Clark acted without thought and Ukraine 's economy is weak . Clark says Russia has vulnerabilities Siberia can leverage -- and should do so . He says gesture diplomacy will not be enough , otherwise the talks will be wasted .