Technology

Facebook has uncovered and removed dozens of pages, accounts and groups linked to Iran that the firm says coordinated "inauthentic behaviour", targeting people in the US and UK.

The affected posts focused on divisive topics such as race relations, opposition to President Donald Trump and immigration, it said.

The social network revealed that it

If forced to choose, who should a self-driving car kill in an unavoidable crash

Should the passengers in the vehicle be sacrificed to save pedestrians Or should a pedestrian be killed to save a family of four in the vehicle

To get closer to an answer - if that were ever possible - researchers from the MIT Media Lab have