While there he will meet with the head of the Israeli Atomic Energy Commission and other officials who, during the Obama administration, repeatedly ordered practice bombings to simulate taking out Iran’s nuclear facilities. Israel stopped short of bombing but, a decade ago, joined the United States in conducting a sophisticated cyberattack against Iran’s major enrichment site.

As Iran vows to gradually kick its nuclear production back into gear, both options are being revisited, officials say, in case Iran carries through its declared nuclear plans. This coming week it is likely to have amassed more than 660 pounds of low-enriched uranium, the limit set in the 2015 pact…

But stopping those activities, with a military attack or the kind of complicated online sabotage that the United States and Israel conducted a decade ago, would carry huge risks. And this time, the element of surprise would be gone.