** FILE ** China's military is seeking to purchase an unspecified large number of Russia's next-generation Saturn AL-117S jet engines, Russian officials are quoted as saying. The engines reportedly are used in at least one of the prototypes of the newest Chinese fighter, the stealth J-20 (pictured before a runway test in Chengdu, China, in January). (Kyodo News via Associated Press)
** FILE ** A worker sweeps outside the College of Computer Science & Technology on the Yuquan campus of Zhejiang University in Hangzhou, China, on Thursday, Feb. 21, 2013. Unit 61398 of the People's Liberation Army, which has been recruiting computer experts from the school for at least a decade, is alleged to be one of several hacking operations run by China's military. (AP Photo)
A worker sweeps outside the College of Computer Science & Technology on the Yuquan campus of Zhejiang University in Hangzhou, China, on Thursday, Feb. 21, 2013. Unit 61398 of the People's Liberation Army, which has been recruiting computer experts from the school for at least a decade, is alleged to be one of several hacking operations run by China's military. (AP Photo)
** FILE ** A worker sweeps outside the College of Computer Science & Technology on the Yuquan campus of Zhejiang University in Hangzhou, China, on Thursday, Feb. 21, 2013. Unit 61398 of the People's Liberation Army, which has been recruiting computer experts from the school for at least a decade, is alleged to be one of several hacking operations run by China's military. (AP Photo)
** FILE ** China's military is seeking to purchase an unspecified large number of Russia's next-generation Saturn AL-117S jet engines, Russian officials are quoted as saying. The engines reportedly are used in at least one of the prototypes of the newest Chinese fighter, the stealth J-20 (pictured before a runway test in Chengdu, China, in January). (Kyodo News via Associated Press)
Huawei made its presence at a wireless trade show in Las Vegas this year. Some in Congress fear the Chinese telecommunications giant, said to have ties to China's military, poses a risk to national security with its deal to supply components to a supercomputer lab that is a defense contractor. (Associated Press)
