The Wall Street Journal China Is Tracking Down Its Rare-Earth Experts—and Taking Away Passports — Beijing asks companies for lists of specialists to keep tabs on them. China Is Still Choking Exports of Rare Earths Despite Pact With U.S. — Western companies are struggling to secure approvals for rare-earth imports from Chinese authorities, despite U.S.-China deal. A Weakened Iran Poses an Alliance Test for China, Russia and North Korea — The trio helped Iran build its nuclear pr