VIENNA (AP) — Iran said Wednesday it wants to greatly expand its uranium enrichment program despite Western fears that it could be used to make atomic arms.

The position outlined by Iranian nuclear agency head Ali Akbar Salehi appeared to be the most detailed yet of what Tehran wants at its closed-door negotiations with six world powers. It also highlighted the huge obstacles in the way of an agreement by a July 20 target date, since the world powers want Iran to reduce its enrichment program.