ANCHORAGE, Alaska (Reuters) - Civil libertarians filed suit in Alaska on Thursday to challenge an Anchorage ban on sitting or lying on public sidewalks they said was enacted partly as a response to one man's prolonged protest outside City Hall. The lawsuit, filed in state Superior Court by the American Civil Liberties Union of Alaska, called the 2011 ordinance a violation of the right to free speech and peaceful assembly. The suit also targets a related ban on panhandling in downtown Anchorage. ...