Niger and what happened. >> and hans what's the fbi doing in inv involved in this? >> forensic support. it's not uncommon to have the fbi assist in a d.o.d. investigation, when u.s. service members die. basically, they're trying to figure out, how did this person, what was the cause of death? now, there will be autopsies, there have been autopsies on these four, and that's sort of determining to be gory about it, the cause of deaths, was this an enemy bullet, was it friendly fire? so, the fbi has a great deal of expertise. that's what they're focused on. you know, this -- the initial assessmen...