Bitcoin's price soared in 2017 — reaching a record high of more than $ 19,000 in December — but saw sharp declines at the start of this new year due to fears of regulatory crackdown on cryptocurrencies. (inc.com)
Key to mephedrone's extraordinary rise in Europe has been the recent success of crackdowns on ecstasy and cocaine supply: there was a drop in purity of cocaine seized by the police in England and Wales from over 60 per cent in 1999 to 22 per cent in 2009, and about half of ecstasy pills seized last year contained no MDMA, ecstasy's active ingredient. (newscientist.com)
Following successive crashes at the end of last year and start of 2018 — which were largely precipitated by regulatory crackdowns in Asia and elsewhere — Bitcoin has slowly recovered some of its losses. (fortune.com)