Michael Martin is used to getting compliments on the botanical bonanza he has cultivated, mulched and pampered along his leafy, residential lot on the Near West Side.

But one anonymous complaint set Madison's inspection apparatus in motion and kept Martin in thrall for two weeks, an experience that mustered supportive neighbors.

"I know the city has to respond, and all this is complaint-driven, but they don't have to act on it," she said. "Too many people can use that as a way to get back at their neighbor. One anonymous complaint can be very manipulative."

More than 75 people visited Chicago Police headquarters Monday to pick up applications to register firearms on the day the city's new handgun ordinance took effect. The ordinance, which requires gun owners to keep their weapons in their homes, was hastily crafted by the city after the U.S. Supreme Court struck down the city's 28-year-old handgun ban....