<< But Tool did do a version of it didnt they? Or am I mistaken? >>
Like yakko said, a lot of songs are what I like to call "napsterized" and attributed to the wrong person. Case in point, downloaded a liver version of "Lightning crashes" credited to pearl jam, but upon listening to it, it became obvious within the first 10 seconds that it was NOT Eddie vedder talking, but Ed from Live. An even better find then what I thought before.
I was reading the Tool FAQ at toolshed.down.net last weekend out of boredum, and nowhere it said Tool covered the mission impossible theme.