In the latest sign that Iran is readying for a military clash with the United States even as it works to revive an Obama-era nuclear “deal,” experts have revealed that Tehran is hardening its “critical infrastructure” as a possible response to an attack on the U.S. electric grid.

While some in the Biden administration have said Iran does not yet have a traditional nuclear-tipped missile that can strike the U.S., others are now citing evidence that the terrorist nation is stepping up its efforts to explode a small nuclear weapon delivered on a satellite in the skies over key electric grids, creating a blackout knockout for the U.S.