"One good spy is worth 10,000 soldiers." - Sun Tzu, ancient Chinese military strategist Islamic terrorism is still the greatest threat to our national security, but Chinese espionage against the United States is gaining ground. The FBI says China will be America's greatest counterintelligence problem during the next 10 to 15 years. China has seven permanent diplomatic missions in the States, staffed with intelligence personnel. But the FBI believes that as many as 3,500 Chinese "front companies" are involved in espionage for the People's Republic of China (PRC) as well. And with the bureau focused on terrorism, the China challenge...