After sanctions, Tillerson may find Russia talks an uphill climb

By Arshad Mohammed and Jonathan LandayWASHINGTON (Reuters) - U.S. Secretary of State Rex Tillerson has the unenviable task of exploring U.S.-Russian cooperation following Washington's latest sanctions on Russia and Moscow's expulsion of U.S. diplomats.Tillerson and Russian Foreign Minister Sergei Lavrov meet this weekend at a regional forum in Manila, their first face-to-face talks since President Donald Trump reluctantly signed into law sanctions that Russia said amounted to a full-scale trade