The document discusses the concept of trust in international relations. It specifically examines trust in the context of the Nuclear Non-Proliferation Treaty (NPT) and issues of trust between Iran and other countries regarding Iran's nuclear program. The NPT was based on an original bargain of disarmament and non-proliferation, but it faces weaknesses like discrimination and lack of progress on disarmament. Regarding Iran, while it claims its nuclear program is only for peaceful energy purposes, other countries mistrust Iran due to its secrecy and lack of cooperation with inspectors. An agreement between Iran, Brazil and Turkey to swap enriched uranium was an effort to rebuild trust, but critics remain concerned about proliferation risks. Overcoming