Why the Christchurch Call is difficult for some world leaders

While the need to tackle online extremism is irresistible, some leaders have a problem backing it — because they are part of the problem.

In the wake of the terrorist attack in Christchurch, New Zealand, a group of world leaders came together with tech giants to make warm statements and try to agree a plan of action to tackle online extremism. Australia, Germany, India and Sweden are just some who have backed action, alongside a roll call of the biggest and best of online businesses including Facebook, Amazon, Google, Twitter…