The FBI has arrested three Chinese nationals for visa fraud, while a fourth remains a fugitive staying at China's consulate in San Francisco. The four are believed to have been members of the military posing as researchers. The FBI has interviewed visa holders in more than 25 US cities suspected of hiding their Chinese military memberships.

from Times of India https://timesofindia.indiatimes.com/world/us/us-arrests-3-chinese-nationals-for-visa-fraud/articleshow/77138312.cms