in niger. two other service members wounded and as secretary mattis said the incident is now under investigation but there are a lot of questions about what happened in niger and why we were there. to my colleague at the pentagon hans nichols covering the story for us. hans, general kelly actually added to the intrigue today saying, look, i know more about this that i can t say. this is a, there is a heavy reluctance by the u.s. government not to say why we were there. well, it s complicated. it s very difficult to explain you re there for train, advice and assist, sort of getting local sources up to snuff on counterterrorism. that s across what they call here, the lake chad basin. another more sensitive region, though, and that is because they re building big drone bases there. that has sensitivities local. they need the drone bases to could isr. intelligence surveillance reconnaissance all across.