I don't know how to feel about this. So here goes the story. Our department is small and made up of 6 people (4 ex-pats and 2 Americans). Our industry is facing competition from Chinese imports and I was ordered to find information on this so we could possibly file a case. I asked a Chinese guy in the department if he had any information that people within our company had sent him regarding this issue because he has been working here for 3 years while I've only been here 6 months. The coworker who handed me the project (an expat from Latin America) overheard me and pulled me aside into a small conference room. He said not to let the Chinese guy know anything about projects or research we do regarding China because the other guy is a Chinese citizen and we don't know where his loyalties lie. He then went on to say that he could be a Chinese spy for all we knew. He was very serious about this. This really disturbed me. I'm not sure how to handle this. Should I let this go or let the boss know? I think the boss might be in on this too because they are very good buddies.