Israel was able to track the movements of key Iranian figures and assassinate them during the 12-day war this spring by following the cellphones carried by members of their security forces.

© Majid Asgaripour/Wana News Agency, via Reuters

U.S. and European military officials are increasingly concerned about the flights, even as Russian acts of sabotage have declined.

© Natalie Keyssar for The New York Times

The authorities provided few details about the case, the latest in a series of apprehensions in Germany of potential Chinese spies.

The Chinese Consulate in Manhattan has mobilized community groups to defeat candidates who don’t fall in line with the authoritarian state.

Spy fiction thrives on vermismilitude — shy are so many writers so incompetent when it comes to naming foriegn characters?

Jinchao Wei provided a Chinese intelligence officer with defense and weapons abilities of U.S. warships, including their vulnerabilities, prosecutors said.

Documents examined by researchers show how one company in China has collected data on members of Congress and other influential Americans.