User blog comment:DCFreak22/Miss Martian's Grey Area - Justice League Oblivious?/@comment-5062647-20120612075111

Good question. Miss M messing with their minds seems the most plausible, although you would think that Martian Manhunter would feel her in there, and Batman supposedly has the mental discipline to stave off mindreaders.

It's a quandry. But a fascinating one.