U.K. Expels Russian Diplomats After Nerve Gas Attack Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Investigators prepare to move an ambulance for transportation as police and members of the armed forces probe the suspected nerve agent attack on Russian double agent Sergei Skripal. ( Andrew Matthews / AP Images ) Produced by Dana Roberson and Elizabeth Ross Hosted by Todd Zwillich Produced by PRI and WNYC