Google and Facebook face penalties if they don't stop online hate

Theresa May with interior minister Gérard Collomb and President Macron (left) before the France v England match outside Paris.Technology companies such as Google and Facebook must do more to curb the “poisonous propaganda” that fuels terror attacks such as the atrocities in London and Manchester, the prime minister has said, launching a UK-French pact to explore new ways to curb the spread of online hate.