Russian ex-spy, daughter may have come into contact with nerve agent at their front door, investigators say

Russian ex-spy, daughter may have come into contact with nerve agent at their front door, investigators say  Washington Post Spy poisoning: Highest amount of nerve agent was on door  BBC News Poison Was Left on Russian Spy's Front Door, the British Police Say  New York Times Europe's Anti-Kremlin Roll Call Was Weak  BloombergFull coverage