The American Civil Liberties Union of Minnesota sued Hennepin County on Monday on behalf of OccupyMPLS, the protest group camping out on the Government Center Plaza in downtown Minneapolis in defiance of county rules. The ACLU suit contends that those rules, which forbid tents and electricity, and “certain unwritten procedures enforced by the county” violate the demonstrators’ free speech rights. … The suit asks that new rules restricting the use of chalk, electricity and tents be declared unconstitutional. The plaintiffs are also seeking an injunction against the rules, and they want the county to provide electricity for the protesters. It...