Manya Brachear of the Chicago Tribune writes a story on security at churches in light of the murder of Dr. George Tiller at his Lutheran church.
In the Catholic parish setting there is little culture of security, though there are some places that implement security pretty well. St. Patrick's Cathedral in New York City has good security measures, at least from observation. I know of one archdiocese that can whisk away the archbishop from the chancery's rooftop via a helicopter, if necessary. At the parish level, it's a serious matter. More needs to be done.