The document discusses the concept of trust in relation to the Iranian nuclear program. It argues that trust is underestimated in international relations but is key to ensuring world peace and cooperation between states. The document points to the nuclear deal between Brazil, Turkey, and Iran as an example of how building trust can help address issues like non-proliferation, as the two countries were willing to take a "leap of faith" in their relationship with Iran. Overall, the document advocates for greater trust-building efforts globally in order to make progress on issues like nuclear disarmament and ensuring peace.