A: Pretty much anyone with a pulse. See "Well I'll Be Darned -- Norks Ignore Deadline to Shut Down Nuke Plant." (Don't you just love Andy McCarthy?) As a friend once remarked, Kim Jong Il may be nuts, but he knows what he wants and is acting very rationally. Et voila... Some days ago--maybe it was last week?--C-SPAN2 had on a panel discussion regarding NK, and one of the panelists drily remarked that it would be very interesting if someone were to do the research to find an agreement of any kind, nuclear or otherwise, that NK had actually ever followed. Indeed it would.
Nor is it difficult to predict that Ahmadinejad & co. have been taking copious notes for quite some time. Whatever else they may be, naive and stupid they are not, particularly given their most recent success.