http://www.chron.com/disp/story.mpl/ap/top/all/7004863.htmlVIENNA — Iran has set up new equipment that will allow it to boost its efficiency at enriching uranium at higher levels, diplomats said Friday. The move is likely to give the U.S. more leverage with Russia and China in its push for new U.N. sanctions on Tehran.
Iran's clandestine enrichment activities were discovered eight years ago and have expanded since to encompass thousands of centrifuges churning out material enriched to 3.5 percent. But despite three sets of Security Council sanctions meant to enforce demands of a freeze, Tehran moved to a new level in February, when it set up a small program to produce material enriched to near 20 percent.
Tehran denies any interest in developing nuclear arms and says it needs the higher enriched uranium to supply its research reactor with fuel after a U.N.-supported deal to provide the material from abroad fell apart. But the move has increased concerns because it brings the Islamic Republic closer to the ability to produce warhead material.
Uranium at 3.5 percent, can be used to fuel reactors — which is Iran's avowed purpose for enrichment. If enriched to around 95 percent, however, it can be used in building a nuclear bomb, and at 20 percent, uranium can be turned into weapons-grade material much more quickly than from lower levels.
<more>