The US has for the first time designated China as its number one threat, with the intelligence community revealing on Wednesday that it is opening investigations into Beijing “every 10 hours”. Spy agency leaders told a Senate Intelligence Committee hearing that China is an "unparalleled priority”, citing the country’s regional aggression and cyber capabilities. “I don't think there is any country that presents a more severe threat to our innovation, our economic security and our democratic ideas,” Christopher Wray, FBI director, said in his testimony. “And the tools in their toolbox to influence our businesses, our academic institutions, our governments at all levels are deep and wide and persistent. “We have now over 2,000 investigations that tie back to the Chinese government,” he added. “I can assure the committee that's not because our folks don't have anything to do with their time."