TEHRAN, Iran - Iran's president on Tuesday blamed the United States and other "big powers" for global ills such as nuclear proliferation and AIDS, and accused them of exploiting the United Nations for their own gain and the developing world's loss.

But, President Mahmoud Ahmadinejad said, time was on the poor countries' side.

"The big powers are going down," Ahmadinejad told foreign ministers of the Nonaligned Movement meeting in Tehran. "They have come to the end of their power, and the world is on the verge of entering a new, promising era."

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