UK couldn't determine the nerve agent source for the ex-russian spy attack.

http://www.scmp.com/news/world/europe/article/2140173/uk-lab-says-cannot-determine-nerve-agent-used-poison-spy-was

After a big hoo-ha, the UK had come forth to admit that it couldn't determine the source of the nerve agent.  Previously, the UK pinpointed that the nerve agent came from Russia and Russia was behind the attack.  It had backtracked on that statement after expelling Russia diplomats.

The UK is becoming more and more like the USA now.