First Assistant U.S. Attorney Bill Essayli said Chinese espionage is "extremely pervasive" in the U.S. following the arrest of an alleged Chinese agent in Los Angeles this month.Essayli told Fox News Digital in an interview that his office has pressed charges against several alleged Chinese spies in recent months, saying Beijing is brazen in its attempts to build their access inside the U.S."I think it's extremely pervasive," Essayli said of Chinese spying. "China is one of our biggest adversaries, and they're committed to advancing their interests. And they're playing the long game, and so th...