Washington Post: At least 40 developing countries from the Persian Gulf region to Latin America have recently approached U.N. officials here to signal interest in starting nuclear power programs, a trend that concerned proliferation experts say could provide the building blocks of nuclear arsenals in some of those nations.

At least half a dozen countries have also said in the past four years that they are specifically planning to conduct enrichment or reprocessing of nuclear fuel, a prospect that could dramatically expand the global supply of plutonium and enriched uranium, according to U.S. and international nuclear officials and arms-control experts.

Much of the new interest is driven by economic considerations, particularly the soaring cost of fossil fuels. But for some Middle Eastern states with ready access to huge stocks of oil or natural gas, such as Kuwait, Saudi Arabia and the United Arab Emirates, the investment in nuclear power appears to be linked partly to concerns about a future regional arms race stoked in part by Iran's alleged interest in such an arsenal, the officials said.