Racial profiling is just a slur for pattern recognition. If it turns out that 95% of Chinese scholars in the US are more loyal to China than to America, and that when given a chance, will illegally send information back to China, what are you supposed to do?
It's fine if you don't want to have a racial bias yourself, but it doesn't mean you need to ignore the fact that (in this hypothetical) the vast majority of Chinese are highly ethnocentric.
It's fine if you don't want to have a racial bias yourself, but it doesn't mean you need to ignore the fact that (in this hypothetical) the vast majority of Chinese are highly ethnocentric.