In the DC Universe all Martians lose their powers when they're exposed to open flame (it's a psychological weakness). Of course, all DC Martians are also shapechangers, so the key to their defeat was figuring out that they *were* Martians. The other members of the JLA were fighting them one-on-one, and losing; Batman figured out their secret and took out three of them by himself.
Incidentally, that story appeared in JLA (latest volume) #1-4, by Grant Morrison and Howard Porter, and was collected in the trade paperback "New World Order".
"Incidentally, that story appeared in JLA (latest volume) #1-4, by Grant Morrison and Howard Porter, and was collected in the trade paperback "New World Order"."
Hmmm--I'm thinking of treating myself to the comic-book store for my birthday--maybe I'll look that up. I'm also thinking of getting some more "Essential Spider-Man" reprints and some manga. Have to think about what else. . .
But...but...but what about the Bat Utility Belt?