His ethnicity is a red herring. The important point is that he seems to have had a lot of correspondence with other Chinese, in China. I have worked with many

His ethnicity is a red herring. The important point is that he seems to have had a lot of correspondence with other Chinese, in China. I have worked with many Chinese-Americans. Many of them have no ties to China. Many of them, being 2nd or 3rd generation Americans, don't even know Chinese. I truly doubt that they'd be targets of investigations just because they were ethnic Chinese. On the other hand, if the person was Canadian-American and had significant correspondence with China, they probably could be considered suspicious. I think you'd agree that the U.S. Justice system is an imprecise system. Some innocent are convicted. And, some guilty go free. It's a delicate balancing act to find the sweet spot in the middle where most criminals are punished and all innocent are untouched. This is an ongoing challenge. The problem would be if there was a systematic bias in the system that unfairly targeted particular groups of people. Although Mr Xi's case is unfortunate, a sample size of one doesn't prove a systematic bias.