Disgusting, yes, but (if the links are correct) the infection risk from undercooking isn't any more than with regular chicken. Its not infected, just muscle that died from decreased circulation exactly analogous to a heart attack, (probably pretty close to death too...if it had been in the bird for many days it would be more obviously dead and beginning to break down, and if for some weeks it would be converted to scar). Still completely disgusting. I wonder how much of this ends up in McNuggets...