I'm surprised this isn't getting more coverage. I knew Martha was hardcore, but now she's insisting, Tyson-like, that she's indestructible, that she'll take all comers, anywhere, any time.
The rumor, and I've heard this from a few different sources, is that soon after her release from stir, she underwent a process by which adamantium, the strongest metal known to science, was fused to her skeleton. She also has secretly developed a very powerful plasma-bolt firing visor which can punch holes through the side of an aircraft carrier. It's suspected that Stewart actually has three of these visors, in Sherwood green, smoky pink, and perriwinkle.
A special forces unit dispatched to Turkey Hill to deal with the Stewart threat has not been heard from, and are presumed utterly wiped out. Stewart herself was last seen in a forest near her home, chopping down trees with her bare hands.