FBI, MI5 chiefs warn of threat from China at rare joint address in London

The US' FBI Director Christopher Wray and the UK's MI5 Director General Ken McCallum have cautioned business leaders against threat from the Chinese government, in an unprecedented joint address in London. "We consistently see that it's the Chinese government that poses the biggest long-term threat to our economic and national security...along with our allies in Europe and elsewhere," Wray said.