With spy allegations, crisis in US-China relations deepens

Spying accusations and consulate closures speak to an accelerating deterioration of relations. Some experts say action over Chinese spying in the U.S. is long overdue, and a result of new U.S. willingness to confront Beijing.

Like many visiting researchers in the United States, Chinese citizen Tang Juan seemed to lead an uneventful life at the Davis campus of the University of California, not far from the state capital of Sacramento.

According to the FBI, however, that image was far from the reality.

Last month Ms. Tang – perhaps spooked by...