The Supreme Court['s]... decision-making is beginning to reflect the influence of international legal norms, as well as rulings by courts in foreign countries.... "Human rights progress is not the same in every part of the world at the same time," said Harold Hongju Koh, a professor of international law at Yale... who served... in the Clinton administration. "In the U.S., we're ahead on some issues, but behind on others, such as the death penalty, gay rights and immigrants' rights.".... This approach is not without its critics... especially... Justice Antonin Scalia..... Scalia wrote: "We must never forget that it is a Constitution for the United States of America that we are expounding. . . . [W]here there is not first a settled consensus among our own people, the views of other nations, however enlightened the Justices of this Court may think them to be, cannot be imposed upon Americans through the Constitution.".... "When the court starts taking things like that into account, it reveals itself as more interested in making policy than interpreting the fixed texts of the Constitution or statutes," said John C. Yoo, a former Bush administration adviser on international law.... Koh and Yoo agree on one thing: Both said that the justices' interest in international law has probably been influenced by meetings with fellow jurists on their frequent visits abroad. "Today, the justices are traveling much more than they once did," Koh said. "And when they go overseas, the question they are asked is, 'How does your jurisprudence fit in with that of other countries?'"