The IAEA reported Monday that Iran is successfully enriching a small stock of uranium to nearly 20 percent purity – a development that could mean Iran is preparing the way to move rapidly to the 90-percent level needed for a nuclear weapon. Iran maintains its nuclear program is solely for peaceful power-generation purposes. The report also confirmed that Iran has amassed a stockpile of low-enriched uranium large enough to produce two nuclear weapons if purified to the requisite 90-percent level. That fact was already known, but confirmation appears likely to knock further support out from under the agreement announced last month among Iran, Brazil, and Turkey to remove about half of Iran’s stockpile to Turkey.