Continuity mistake: At The Beginning when a man says: "We're not who we are", he says it differently when Scully watches the tape. (00:01:20)
Continuity mistake: When the presentation of IDs begins, dr Da Silva stands in a different position relative to the others than in the next shot. (00:07:00)
Answer: He was being facetious. He doesn't specifically know that information, he was merely giving examples of the types of information he has access to.
I think so too.
lionhead