At the moment it seems the targets are either extremely rare, or are bugged (and you can't find them). But usually, they are in Anaconda's, and it usually ends like this:
[video=youtube;ygnTXuijBvU]https://www.youtube.com/watch?v=ygnTXuijBvU[/video]
Try looking at Unidentified Signal Sources, as that is apparently where they are usually found.