Alexa laugh: Why Amazon's Echo is refusing to follow instructions then emitting horrifying noises

Amazon's Echo is emitting chilling laughter and refusing to do what is asked of it. The terrifying behaviour is leading people to lose sleep and to unplug their devices, amid fears their smart speakers are after them. But the chilling behaviour doesn't demonstrate that the machines are about to take over. In fact, it shows just how far they've got to go. The I.F.O. is fuelled by eight electric engines, which is able to push the flying object to an estimated top speed of about 120mph.