President Biden has been in office for just over one month, but when it comes to his administration's relationship with Iran, the honeymoon is already long over. Just in the past few weeks, Iran has launched rockets at American assets in Iraq, refused to allow in-person inspections by International Atomic Energy Agency officials of its nuclear facilities, and extorted sanctions relief from South Korea by taking an oil tanker hostage. Through all these actions, Tehran is trying to determine the Biden administration's objectives, probe its limits, and assess its political will.

Now it's up to the new American team to lead a response, and to declare—in its words and actions—to the world, and especially to the Iranians, what the United States wants to do, what it can abide, and what it will not accept. On this week's podcast, the national-security expert Richard Goldberg joins Mosaic editor Jonathan Silver to explain the Biden administration's early moments of decision on Iran and to project what the short and long term consequences of those decisions might be.

Musical selections in this podcast are drawn from the Quintet for Clarinet and Strings, op. 31a, composed by Paul Ben-Haim and performed by the ARC Ensemble.