A Chinese billionaire may have hidden 6% of the world's aluminum in the Mexican desert

AP Images It's not every day that Mr. Bean makes an appearance in the Wall Street Journal's commodities coverage.  And that might not even be the strangest finding in the Journal's investigationinto a massive pile of aluminum that allegedly just sat there, unused, in the Mexican desert for years.  To start, some background: China's growing industrial sector has been hard on the aluminum producers in the United States. In 2000 there were 23 smelters operating nationwide, now there are onl...