I think I put it "so-called jihadis".
There are a couple of ways. One is they tend to be isolated from the political process. In Mali, for example, there are the compliant armed groups and so-called terrorist armed groups, so it's difficult as a political entry point. The second difficulty that has made it more complex is the asymmetric use of force against civilian populations. You see a lot of use of IEDs and other things that you don't see in a lot of other conflict settings. The third one is, obviously, that the broader international condemnation of these groups makes it much more difficult for the UN to have an entry point for engagement.
I have 30 seconds, so I will add that, even with the most proscribed individuals and groups, the UN tends to find a way to engage with them. When I was in Sudan, Bashir was facing an ICC indictment. We were the only entity that would meet and engage with him. I think that actual engagement is a key value-added for the UN, despite the risks.