FBI Director Christopher Wray, who is stepping down from his role at the helm of the agency, has penned a public farewell message in which he delivers a stark assessment of the dangers facing America, while identifying hostile actions by the Chinese regime as “the defining threat of our generation.” Reflecting on his more than seven years leading the FBI, he wrote in a Jan. 18 op-ed published by Fox News that the threats facing the country are more severe than at any time in his career—and warned they’re about to get worse. “From where I sit, these threats are more dangerous and complex than at any time I can recall since I began my career in law enforcement almost 30 years ago,” he wrote. “Looking ahead, the challenges to our security will grow even more daunting, and our margin for error will continue to shrink.”…