anchor.diff:  % Returns a subset of the nodes_wanted() that we see.
   
   nodes_actual_proper() ->
  -    % TODO: Track flapping nodes and attenuate.
  -    %
       Curr = nodes_actual(),
       Want = nodes_wanted(),
       Diff = lists:subtract(Curr, Want),
  
positive.code:                [NewCookie]),
      cookie_set(NewCookie).
  
  % Gets our wanted otp cookie.
  %
  cookie_set(Cookie) ->
      X = ns_config:set(otp, [{cookie, Cookie}]),
  
negative.code: 
  nodes_actual_other() ->
      lists:subtract(ns_node_disco:nodes_actual_proper(), [node()]).
  
  % -----------------------------------------------------------
  
  cookie_gen() ->
      {A1, A2, A3} = erlang:now(),
  