Amid spy row, U.K. accuses Russia of stockpiling a nerve agent

LONDON -- Britain's foreign minister said Sunday that he has evidence Russia has been stockpiling a nerve agent in violation of international law "very likely for the purposes of assassination." Foreign Secretary Boris Johnson said the trail of blame for the poisoning of former Russian spy Sergei Skripal and his daughter Yulia in the English city of Salisbury "leads inexorably to the Kremlin." His comment came after a Russian envoy suggested the toxin used to poison the Skripals could have come