3. A workteam was assembled with families, hidden past secrets, or generally something extremely important to lose. It would not be hard for the cia or nsa to create psychological profiles on such people, then threaten them and their families with harm if they spoke up.4. They brought in a team of illegal immigrants. As we all know mexicans are in great supply in our country. They could have used illegal immigrants, and then killed them, knowing that nobody would miss them at all.