JSA vs. Cobra

I saw a JSA vs. Kobra issue in my husband’s pile of comics. I guess the Justice Society of America fights a giant lady and her pet snake. I don’t know why all of the superheroes have their backs turned to her though. I would think that a 50-foot tall woman would have trouble sneaking up a group of people. I’d imagine that at least one of the JSA members would have super-hearing!