New satellite imagery reveals the most construction activity at Iran's Pickaxe Mountain in the nuclear site's six-year history. CSIS experts Joseph Rodgers and Doug Comstock explain what the images show and why even the U.S.'s largest bunker-buster may not be enough to destroy it.
———————————————
A nonpartisan institution, CSIS is the top national security think tank in the world.
Visit to find more of our work as we bring bipartisan solutions to the world's greatest challenges.