How do you go bankrupt?’ novelist Ernest Hemingway once asked. ‘Two ways. Gradually, then suddenly.’ Nation states fail the same way. First comes a long economic and social decline – and then a terrifying collapse into chaos. Britain’s disintegration is all around us – and appears to be accelerating. Last week, former No 10 aide Dominic Cummings revealed in chilling detail how our security services have been compromised by Chinese infiltration. Reams of highly classified information, including top-secret intelligence, defence data and briefings at the highest level, were stolen from government networks. Worse, the reaction from the political class was...