Donald Trump steps up attacks on Amazon
The president accuses the online retail giant of scamming the US Postal Service.
Tesla in fatal California crash was on Autopilot
The company says a Model X vehicle involved in a fatal crash in the US was in Autopilot mode.
Met Police chief: Social media leads children to violence
Britain’s most senior police officer says social media “revs people up” and leads to stabbings and murders.
US may tie social media to visa applications
A state department proposal could require visa applicants to detail all their social media handles.
Quantum computing: The 20 second challenge
Five experts give the briefest of introductions to what might be the next computing revolution.
What is quantum computing?
Microsoft says its researchers are close to a breakthrough that could revolutionise computing.