Mysterious Ailments Are Said to Be More Widespread Among U.S. Personnel

Mysterious episodes that caused brain injuries in spies, diplomats, soldiers and other U.S. personnel overseas starting five years ago now number more than 130 people, far more than previously known, according to current and former officials. The number of cases within the C.I.A., the State Department, the Defense Department and elsewhere spurred broad concern in the Biden administration. The initial publicly confirmed cases were concentrated in China and Cuba and numbered about 60, not includi