-If ARG (the prefix), use the `ask-server' method to query the server
-for new groups."
- (interactive "P")
- (let ((check (if (or (and arg (not (listp gnus-check-new-newsgroups)))
- (null gnus-read-active-file)
- (eq gnus-read-active-file 'some))
- 'ask-server gnus-check-new-newsgroups)))
+
+With 1 C-u, use the `ask-server' method to query the server for new
+groups.
+With 2 C-u's, use most complete method possible to query the server
+for new groups, and subscribe the new groups as zombies."
+ (interactive "p")
+ (let* ((gnus-subscribe-newsgroup-method
+ gnus-subscribe-newsgroup-method)
+ (check (cond
+ ((or (and (= (or arg 1) 4)
+ (not (listp gnus-check-new-newsgroups)))
+ (null gnus-read-active-file)
+ (eq gnus-read-active-file 'some))
+ 'ask-server)
+ ((= (or arg 1) 16)
+ (setq gnus-subscribe-newsgroup-method
+ 'gnus-subscribe-zombies)
+ t)
+ (t gnus-check-new-newsgroups))))