Hacker's chemical sabotage attempt on US water supply

US authorities say a hacker gained entry to the system controlling the water treatment plant of a Florida city of 15,000 and tried to taint the water supply with a caustic chemical.

Russian opposition leader poisoned with nerve agent: Germany

A critic of President Vladimir Putin who fell into a coma in Russia and is being treated in Berlin was attacked with a Novichok nerve agent, a German government spokesman says.