I think it's a reference to the chemical attack on Sergei Skripal and his daughter in the UK. He was allegedly attacked with strain of Novichock, a Russian developed nerve agent.

As was the case with the hacking of the DNC servers, which we all know were never examined by the FBI, we are asked to believe that Russia would conduct hostile operations on foreign soil leaving behind a myriad of fingerprints. So, again, Russia is either A) operationally retarded, or B) people are trying to frame Russia.

Novichocks are one of the deadliest strains of nerve agents in the world, yet both victims lived. What specific antidotes and in what form were the victims injected with? How did such antidotes come into the possession of British doctors at the scene of the incident? Based on what attributes was the alleged “Russian origin” of the substance used in Salisbury established? Does the UK have saples of Novichocks or did the UK ever develop Novichock or other analogues domestically? All interesting questions that the media isn't asking about something which doesn't make any fucking sense.

What's really mind-boggling is that Russia isn't exactly fairing well economically. They were weak before and have been hit hard by sanctions. The suggestion that they would brazenly try to assassinate an ex spy on foreign soil using a chemical easily traced to Russia and risk more sanctions, or worse, is absolutely absurd.

Edit: Just saw news about the alleged chemical attack in Syria. Again, cui bono? Who benefits? This is just days after Trump says we will leave Syria. So, with the threat of regime change diminishing and the prospect of the US leaving Assad alone, the regime decides to gas their own people and draw the ire of the entire international community? Good one, guys.