On July 13 and 14, over 200 rockets and mortars were fired at Israel from Gaza, one of which hit a playground and another a synagogue. One reason why more projectiles failed to hit their targets is the Iron Dome missile-defense system, which shoots incoming ordinance out of the sky. In 2006, after Hizballah launched thousands of rockets into Israel during the Second Lebanon War, the Israeli firm Rafael tasked an engineer named Chanoch Levin, whose own town was bombarded that year, with building a system to protect against them. Dan Raviv tells the story of Levin and his collaborators:

A couple, Boris and Polina (not their real names), both thirty-four, were at the center of Levin’s innermost team. Both had immigrated to Israel with their parents when they were teenagers—she from Soviet Moldova and he from St. Petersburg. In Israel, they grew up to become masters of algorithms. It was their role to come up with an entirely new way for the interceptor missile’s tiny computer to calculate when it was close enough to the attacking rocket to explode its warhead and destroy both projectiles. This had to occur in mere microseconds, since two fast-flying objects meeting nearly head-to-head would have only the briefest of encounters. Polina was a brilliant computer programmer, but testing her algorithms required trial-and-error repetitions on test platforms that had never been used before. Boris’s job was to combine his wife’s mathematical solutions with a unitary, working system that could communicate with software written by dozens of people. He referred to his challenge as a Tower of Babel.

The senior team also included a non-Jew. At twenty-nine, Mula was young for a major in the IDF. Always in uniform, he was assigned to Rafael while he studied for his doctorate in mechanical engineering. A member of the Druze community of northern Israel, Mula invited his teammates to all the big celebrations in his village, where they were warmly welcomed and treated to huge meals. Mula’s assignment was to make sure, during the testing phase of the project, that IDF soldiers would be in place and ready to fire the exact same rockets that Hamas and Hizballah would be using. . . .

To save time, humans were also written out of the equation. With the short-range Katyusha rockets and mortar attacks from Gaza, there would be less than fifteen seconds to decide whether Iron Dome should fire an interceptor, a choice that would be made entirely by an automated system. Although five soldiers would sit in a battle management center, a portable trailer near the launchers, monitoring what their Iron Dome was doing, there would be no time for humans to push a “Fire!” button.

Two extraordinary events demonstrate something important about Israel’s most fervent adversaries. One was a speech given at something called The People’s Forum (funded generously by Goldman Sachs), which stated, “When the state of Israel is finally destroyed and erased from history, that will be the single most important blow we can give to destroying capitalism and imperialism.”

The suggestion that this tiny state is the linchpin of a global, centuries-old phenomenon like capitalism goes well beyond anything resembling rational criticism. Even if Israel were guilty of genocide, apartheid, and oppression—which of course it is not—it would not follow that its destruction would help end capitalism or imperialism.

The other was an anti-Israel protest that took place in front of New York City’s Memorial Sloan Kettering Cancer Center, deemed “complicit” in Israel’s evils. At organizers’ urging, participants shouted their slogans at kids in the cancer ward, who were watching from the windows. Given Hamas’s indifference toward the lives of Gazan children, such callousness toward non-Palestinian children from Hamas’s Western allies shouldn’t be surprising. The protest—like the abovementioned speech—deliberately conveyed the message that Israel is the ultimate evil and its destruction the ultimate good, cancer patients be damned.

The fact that Israel’s adversaries are almost comically perverse does not mean that they can be dismissed. If its allies fail to understand the obsessive and irrational hatred that it faces, they cannot effectively help it defend itself.