Bitcoin value plummets after China orders trading in currency to cease

Beijing orders exchanges to stop trading in bitcoin amid fears increasing number of consumers in market could spark wider financial problemsThe value of bitcoin collapsed below $3,000 (£2,200) at one point on Friday after Chinese authorities announced a crackdown on the digital currency.Bitcoin is the first, and the biggest, "cryptocurrency" – a decentralised tradable digital asset. Whether it's a bad investment is the $70bn question (literally, since that's the current value of all