If I were a betting man, this is what I would go with. I imagine the Chinese/Russians are rigorously reviewing all the foreign contacts listed on the SF86 and c

If I were a betting man, this is what I would go with. I imagine the Chinese/Russians are rigorously reviewing all the foreign contacts listed on the SF86 and checking that with whatever database their governments maintain for suspicious persons. I'd think they would be building a web of who's who that has contacts with clearance-holding Americans.