U.S. Centrifuge Work Revived in Updated Form
By Dan Charles
Special to The Washington Post
Monday, April 23, 2007; Page A06
PIKETON, Ohio — Inside an enormous structure here, shielded by heavy security, a U.S. company is hard at work constructing tall, slender, uranium-enriching centrifuges designed to obtain uranium-235 for nuclear fuel — the very technology that is provoking a standoff between the United States and Iran.