Judges in the United States are, without doubt, free to consult all manner of commentary—restatements, treatises, what law professors or even law students write copiously in law reviews, and, in the Internet age, any number of legal blogs. If we can consult those sources, why not the analysis of a question similar to the one we confront contained, for example, in an opinion of the Supreme Court of Canada, the Constitutional Court of South Africa, the Supreme Court of Israel, the German Constitutional Court, or the European Court of Human Rights?

