In overwhelmingly Catholic Ireland, the constitution outlaws abortion and divorce and proclaims the Holy Trinity the source of all political power. Japan's national charter renounces war. Portugal's forbids private ownership of television stations. Peru reprints its charter in the Lima telephone directory, filling ten pages of fine print. Yet beneath such diversity, each document can trace its rights and freedoms to U.S. soil. Says Joseph Magnet, a law professor at Canada's University of Ottawa: "America has been and remains the great constitutional laboratory for the entire world."
Of the 170 countries that exist today, more than 160 have written charters modeled...