User blog comment:TheOceanspray99/Failsafe, what the f*ck?!!?/@comment-24.87.48.133-20111106051254/@comment-24.87.48.133-20111111075602

She didn't necessarily overpower J'onn directly. The entire Team's collective subconscious screams (which I will admit were influenced by M'gann's own /sub/conscious) was the thing overpowering J'onn. As soon as it was only him and M'gann, however, he "beat" her (He more or less only brought her back into reality). That's a big 'if', I don't think the writers would do that, I mean, have M'gann be freaking out the entire time, taking all organisms on Earth with a brain into a state of subconsciousness. They would need a total Deus ex Machina to take themselves out of that, and I don't think they'll do something that's greatly frowned upon xD