Head of BIS calls for clampdown on bitcoin https://www.ft.com/content/78bf5612-0b1a-11e8-839d-41ca06376bf2?utm_campaign=8dddac06f0-EMAIL_CAMPAIGN_2018_02_06&utm_medium=email&utm_source=POLITICO.EU&utm_term=0_10959edeb5-8dddac06f0-188974757 … via @financialtimes