Patrick Swayze, who had enough on his plate with his cancer battle, found himself in the midst of an anthrax scare in Chicago yesterday. He was filming at the Berwyn police station when a Comcast employee brought a package leaking white powder into the building. Police Chief William Kushner said the man wanted to report it to the police because he was concerned about what might be inside. It was soon determined that the powder was not cocaine, but police were worried that it could be anthrax and isolated the Comcast employee, two sergeants, a detective and a radio operator, all of whom were exposed to the powder, until testing was completed. Swayze luckily did not come into contact with the package or the powder. It was later determined to be corn starch, and filming resumed.