Chinese Maker of Bitcoin-Mining Machines Is a Security Threat, Says Expert

Bloomberg News reports that a Chinese manufacturer, Bitmain Technologies Ltd, that sells most of the world’s Bitcoin-mining machines — including 16,000 of them to a venture backed by two of President Donald Trump’s sons — has been the focus of a months-long federal investigation to assess whether its products pose risks to US national security. David Feith, who left the Trump administration’s National Security Council this year and is now a senior fellow at the Hudson Institute, joins "Bloomberg Crypto". He says “Bitmain has been a screaming challenge on national security grounds".