Iran signs deal for uranium exchange with Turkey

After 18 hours of negotiations between the leaders of Iran, Brazil and Turkey in Tehran today, the three nations signed an agreement for a nuclear fuel swap. According to Iran's foreign embassy, the Islamic Republic is going to send 1200 Kg of its low-enriched uranium, which should be in fact a large part of Iran's nuclear stockpile, to Turkey in return for 120 kg of uranium, which is enriched highly enough for medical research programms but not for building atomic bombs.
Until today Tehran has declined an older but very similar proposal given by the UN. Since Mahmoud Ahmadinejad signed the deal only together with the Turkish prime Minister Tayyip Erdogan and the Brazilian president Luiz Inácio Lula da Silva, he avoided to be seen as caving in to US pressure.
While the Iranian president immediately adressed the international community to accept the deal and restart negotiations with Tehran, the reactions of Western states are still cautious, as you can read on washingtonpost.com:

"U.S. officials did not react immediately to the announcement. But Germany, said the swap deal, which still needs the approval of the U.S., Russia and France, does not free Iran from U.N. Security Council demands that it immediately stop enriching uranium."