The finding, by a German military laboratory, set off alarm bells across Western capitals 13 months ago: A powerful Soviet-era nerve agent was found in the tissue of Russian anti-corruption crusader Aleksei Navalny, lying comatose in a Berlin hospital.
Alexei Navalny
RFE/RL: In aftermath of Navalny poisoning, chemical-weapons group tiptoes toward unprecedented step
A picture taken in The Hague, on June 26, 2018 shows the logo of the Organization for the Prohibition of Chemical Weapons (OPCW) during the beginning of an extraordinary session of member-states.