The no-doubt-about-it *most* successful nuclear proliferator in history has been let free of "house arrest" by Pakistan... who by the way considers him a National Hero.
OFAC and UNSC Sanctions should be the least of the immediate reactions, on him and if politically possible on Pakistan for protecting him.
Further would be if various governments can put together a more meaningful international Arrest Warrant on him.
Best of all, of course, would be for him to conveniently hand himself over to IAEA and INTERPOL for a series of long, long, LONG discussions...
...but that is not going to happen.
At least, not the "hand himself over" part.