Tim Haugh, the retired general and ousted former head of both the National Security Agency and U.S. Cyber Command, warns that China has hacked into U.S. computer networks to an astonishing degree, targeting not just the U.S. military and industries, but also every American. In the months since Mr. Trump's return to the White House, there have been resignations and firings of other people focused on America's cyber defense. "Our overall capacity is getting smaller while we know China's continues