Cryptocurrency firms are fighting for lobbyists and fielding subpoenas in what could be an existential fight over how the multitrillion-dollar industry should be regulated. In the past month, lobbyists have been overwhelmed by firms seeking representation in Washington, as regulators threaten the cryptocurrency companies with lawsuits or cease-and-desist orders. Current and former enforcers say those warnings are likely just the beginning. Over the last decade, the cryptocurrency market has grown from a little-known project shared among technologists and libertarians to a massive and largely unregulated industry. But ... (full story)