Iran to Complete Nuclear R and D by March

[Reuters] Iran will complete its nuclear research and development work by March 2007, Iran's chief nuclear negotiator Ali Larijani said Tuesday. Tehran says it will expand its atomic work by installing 3,000 centrifuges, devices used to enrich uranium. Experts say with 3,000 centrifuges in place, Tehran could make enough material for at least one warhead a year.