File photo of a Chinese national flag in front of a GlaxoSmithKline office building in Shanghai

 
File photo of a Chinese national flag in front of a GlaxoSmithKline office building in Shanghai
A Chinese national flag flutters in front of a GlaxoSmithKline (GSK) office building in Shanghai, in this July 12, 2013 file photo. The detention by Chinese authorities of a British corporate investigator and his American wife in the wake of a corruption probe into pharmaceutical giant GlaxoSmithKline has had a chilling effect on other risk consultants working in China. REUTERS/Aly Song/Files