Chinese Police Raid Bain's Shanghai Office, Take Computers

Chinese police visited Bain & Company's office in Shanghai and questioned staff.
Computers and phones were taken away but no employees were detained.
The purpose of the visit is not immediately clear.
U.S. businesses operating in China are increasingly pessimistic about their prospects.
China has been clamping down on antitrust violations, banned private tuition groups, and reined in a debt binge by property developers.