Didn't Superman confront Spectre with the Spear of Destiny when the Spectre destroyed an entire country? (And the evil of the Spear, long held by Adolf Hitler, started to corrupt even him?)---Al
Wasn't that in a post-Crisis issue? I think I remember the cover, but I never read the story itself.
Anyway, I've always wondered what the in-story reason was for Superman not taking down anti-heroes. The closest we ever saw to that was the Gulag in
Kingdom Come--and that wasn't set in the mainstream DCU.