A 20-year-old Missouri man has been arrested for plotting an imitation of last summer's Dark Knight Rises shooting in Aurora, Colo. Blaec Lammers bought assault rifles and 400 rounds of ammo, and apparently was planning to open fire at the midnight showing of the new Twilight movie. His mother tipped off police that Lammers had been purchasing a lot of ammo, and may have had plans to attack someone "at a movie" ...