BALTIMORE (Map, News) - A radio advertising campaign from the Brady Campaign to Prevent Gun Violence was launched Tuesday asking Maryland residents to support an assault rifle ban in the state. The ad, which will run on Baltimore radio station WBAL, prompts Marylanders to call state Sen. James Brochin, D-Baltimore County, to ask him to support Senate Bill 43 to ban assault rifles. For more information, visit www.bradycampaign.org.