Gun enthusiasts were handed a legal victory this week when a federal judge ruled they can argue that their free-speech rights are violated by an Alameda County ordinance that bans guns on county property. In a ruling issued Tuesday, U.S. District Court Judge Martin J. Jenkins cleared the way for a new First Amendment challenge to the 1999 ordinance. County attorneys had asked the judge to dismiss the challenge, arguing that the gun ban is a public safety issue rather than a constitutional one, but Jenkins said the plaintiffs had sufficient grounds to continue with their lawsuit. "Plaintiffs have articulated...