vine. jake, thank you very much for coming back. we appreciate it. >> thanks, katyn days ago, a successful u.s. military operation led to the death of isis leader abu bakr al-baghdadi. but baghdadi's death did not put an end to the terror organization, which not only remains a presence in iraq but according to exclusive reporting by nbc news, one that is resurging in the region. joining me now from irbil, iraq, courtney cuby. courtney, what do you have? >> hey, katy. so we had an opportunity to go to this very remote outpost in makmor to see where isis is now in iraq. they're dug in at the bottom of this mountain range in makmor and they're exploiting this -- this regional rift that's -- that's decades in this area. the kurdish on one side of the mountains. the iraqi army on the other. but there's essentially this no-man's land in the middle that no one patrols. well, isis has learned that and they're now using that as a route line. they've dug in there. they have caves. they have tunnels. and they're moving freely along there. we had the opportunity when we were up