The articles describe how U.S. Treasury actions could try to further isolate Iran economically, focusing on payment channels, enforcement leverage, and other remaining “pressure points” even though the Trump administration has not outlined specific steps publicly. The central aim is to limit Iran’s access to the international financial system and reduce its ability to conduct economic activity.

Both sources frame the approach as targeting limited pathways rather than broad, clearly defined measures already announced. Fortune highlights the main constraint: using those remaining options could carry risks of retaliation or “blowback” that affect U.S. markets and the broader U.S. economy. The Japan Times similarly points to potential points of intervention available to Treasury, emphasizing that the details are not yet confirmed, but enforcement and financial pressure tools are likely to be central to any strategy.

Together, the outlets focus on a developing policy space: the U.S. has potential instruments to tighten pressure on Iran, but the choice of targets and timing could determine the extent of unintended consequences.