What I think is happening here based on the few details: Facebook regularly suspends accounts for posting pictures of naked kids, particularly in countries which do not have strong taboos against that. These get reported and sit in a government database with little more information than "Maria Santos from the Philippines posted CP." Then any time a Maria Santos from the Philippines arrives, they get flagged. If it's a common name, lots of people get flagged. This incompetence is the only way I can explain 10% of crew members getting flagged without intentional fraud by the government.