The US Supreme Court on Tuesday declined to revive a newspaper's challenge on free speech grounds to an Arkansas law requiring state government contractors to pledge not to boycott Israel, a policy the publication's lawyers called a threat to a constitutionally protected form of collective protest. The justices turned away an appeal by the Arkansas Times, represented by the American Civil Liberties Union, of a lower court's ruling dismissing its lawsuit that claimed that the measure punishes participation in political boycotts based on the viewpoint expressed in violation of the US Constitution's First Amendment guarantee of free speech. The Arkansas...