1. Because in the past 36 years, 200,000 people were killed and over 40,000 bodies haven't been identified, so Fredy Peccerelli and his team are on a mission to help I.D. all the unknown bodies.
2. They extract DNA from the bodies through the bones, then compare it to the DNA of a living family member to make sure the victim''s body belongs to that family.
3. They used it by searching through the military documents to find victims.
Federalist no. 10 is an essay that James Madison as the 10th as the Federalist Papers, a series of essays initiated by Alexander Hamilton