LA Times: Reporting from Washington — Sprawling across about 9,000 acres of rolling farmland in southwestern Indiana is one of the world’s biggest aluminum smelters, operated by Alcoa Inc. The maze of rectangular buildings and giant smokestacks consumes enough electricity to supply a city of 200,000 — power generated by burning more than 2 million tons of coal a year. So it may be surprising that company executives are pushing Congress to pass a version of President Obama’s plan for combating …