The potential of a bigger hantavirus outbreak is apparently starting to drive people mad. Case in point ... an Arkansas man allegedly threatened to shoot up a Walmart if the hantavirus forces the United States to shut down. According to cops, Aaron Keith Bynum was arrested Friday by Marion County Sheriff deputies and charged with making terroristic threats -- a felony -- and harassing communications, a misdemeanor. Mark Ruffalo doesn't think he'll be pulled in for many auditions if Paramount