Clearly they've been getting this stuff for awhile. They have a copy of our stealth drones and will certainly soon have copies of everything else. We have an entire defense industry that's totally compromised by foreign workers. Big shock they sent all the info home isn't it. It's not just defense either, it's everything. Everything is either h1b'd or offshored entirely. /p
The PLA sent thousands of new students to universities here during the ‘80s and since after putting them through special PLA schools (public news a few years ago said 50,000 of ‘em each year). Some of the older, higher ranking PLA students bragged about their rank back in China.