Obama pushed at a joint news conference for continued diplomatic efforts, including negotiations and sanctions, intended to get Iran to comply with international safeguards against nuclear arms.

CNN: Obama, Netanyahu agree on preventing nuclear-armed Iran

Hitherto NSG rules barred nuclear commerce with any country that had not signed the Nuclear Non-Proliferation Treaty (NPT) or had not put all its nuclear industry under safeguards operated by the International Atomic Energy Agency, the UN's nuclear guardian.

ECONOMIST: Mourning an exemption that may defeat the rules

India now needs to negotiate a safeguards agreement with the International Atomic Energy Agency (IAEA) and win the consensus of the Nuclear Suppliers' Group so that the Bush administration can present the deal to Congress for a final vote before the end of 2007.

BBC: NEWS | South Asia | Is India-US nuclear accord dead?

Traffic is likely to increase along with the growth of international trade, but there are few safeguards in place.

ECONOMIST: Shipwrecks in the Aleutians

This agreement will encourage the development of nuclear expertise and professionals in Chile and advance bilateral cooperation on nuclear safety, security, and safeguards in line with the highest international standards.

WHITEHOUSE: President Obama on the United States and Latin America

Some of the ideas are useful, such as strengthening the International Atomic Energy Agency as a proliferation watchdog and beefing up safeguards and verification mechanisms.

WSJ: U.S. Disarmament Is Dangerous for Asia