Rory Cellan-Jones is the BBC's Technology Correspondent, covering technology for television, radio and the BBC Website. He is also presenter the BBC World Service’s weekly technology programme Tech Tent. Rory has been a reporter for the BBC for a quarter of a century, covering many of the world’s biggest business and technology stories in that time. He blogs regularly on "dot rory", the BBC’s popular technology blog, , and is a prolific tweeter – you can follow him at @ruskin147 or @BBCRoryCJ .