Chicago police are used to facing the possibility of death every time they put on their badges. But it's safe to assume they paid special attention to the alert on police radio channels Monday advising them to "expect a heightened presence of Satan Disciples" in the Brighton Park neighborhood on the city's Southwest Side. The real news: "This gang is in possession of numerous military-style rifles that are capable of piercing police protection." Shootings in Chicago, as in most places, are usually done with handguns, which have the advantage of being relatively inexpensive and easy to conceal. But in recent...