... Iran maintains that its nuclear program is designed solely to produce nuclear energy for electricity and that it is within its rights and the regulations of the Nuclear Non-Proliferation Treaty.
Under the treaty, nations without nuclear weapons pledge not to pursue them in exchange for a commitment by five nuclear-weapons states - the United States, Russia, Britain, France and China - to negotiate nuclear disarmament. The treaty guarantees countries that renounce nuclear weapons access to nuclear technology for peaceful purposes.
North Korea withdrew from the treaty in 2003. Three countries have refused to join - India and Pakistan, which conducted rival nuclear tests in 1998, and Israel, which is widely believed to possess weapons.
The Bush administration is seeking to share nuclear technology with India. The plan - which angered Iran because it views the deal as a reward for producing nuclear weapons outside the NPT - has not been approved by Congress ...
http://seattlepi.nwsource.com/national/1107AP_Nuclear_Countries_Glance.html