Russian swimmer Yulia Efimova is at the center of Russia's doping scandal. Here's what you need to know about her. (Monica Akhtar/The Washington Post)

Feels good, doesn’t it, to slap water in the face of the rest of the world and go all jingoist? Lilly King kept America strong and pure when she sent a blast of chlorine into the eyes of that Russian criminal mastermind Yulia Efimova and prevented her from melting the earth’s core. Or something like that, right? But there is a disquieting aspect to the narrative going here at the Olympics. It’s not a moment of perfect American moral clarity.

King, 19, is a swaggeringly great swimmer, but the rivalry between her and 24-year-old Efimova in the breaststroke is hardly a simple matter of a clean swimmer prevailing over “drug cheating,” as King put it. The facts of Efimova’s case aren’t nearly so clear cut despite the self-righteous Cold War shunning of her. It’s worth looking a little more closely at the human face of Efimova and maybe even standing in her place for a minute. As she suggested tearfully the other night, “You can just try and understand me, like if you switch you and I.”

For starters, Efimova doesn’t live in Russia; she lives in Los Angeles, where she has trained with Southern Cal Coach Dave Salo since she was 19. He says via email, “She is a sweet kid and not the monster she is being branded.” She was born in the war-torn Chechen capital of Grozny and raised in the Russian swim-club system in Volgodonsk, but in 2011, her coaches feared she was wearied by the grind of the Russian program, so they asked Salo to take her on.

Efimova has two offenses for performance-enhancing on her record, and let’s take a closer look at them. One day in 2013 she went to a local GNC in L.A. and bought a nutritional supplement. Her English was poor, and she didn’t check the contents, which included the banned hormone DHEA. Efimova’s offense was deemed unintentional, and the normal two-year suspension was reduced to 16 months.

University of Virginia physics professor Lou Bloomfield explains some of the fundamental forces at work in Olympic freestyle swimming, and how swimmers can use science to get ahead. (Thomas Johnson,Julio Negron,Danielle Kunitz,Osman Malik,Dani Johnson/The Washington Post)

No American would do such a thing, right? Actually, as NBC correspondent Alan Abrahamson has pointed out, Efimova’s case was very similar to that of Jessica Hardy, banned for ingesting a tainted supplement in 2008 only to win two medals at London 2012. No one splashed water in Hardy’s face or refused to shake her hand.

Salo has coached American champions from Amanda Beard and Rebecca Soni to Aaron Peirsol and Jason Lezak, and he estimates that “90 percent plus” of all international athletes consume some sort of supplement, though he tries to discourage it.

“I lost the battle a long time ago with regards to athletes believing that they need something” for recovery, etc., he said.

Efimova is deemed a chronic cheat here mainly because of her second offense: testing positive for the heart medication meldonium in the midst of the crisis over the exposure of state-sponsored doping in Russia. Meldonium was in broad use by Eastern European athletes legally until WADA prohibited it in January 2016. This spring, WADA declined to ban more than 200 athletes who tested positive for meldonium after January, including Efimova, because it’s unclear how long it takes to clear the system. It’s quite possible that she obeyed the WADA ban but the medication remained in her system anyhow.

Efimova tried to explain these circumstances in her Olympic post-race news conference as King refused to look at her. Here was Efimova’s account of herself, and you can accept it or not.

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“I have once when I made mistakes, and I have been banned for 16 months,” she said. “For second time, it’s not my mistakes. Like, I don’t know why actually I need to explain everybody or not. . . . Like if WADA say, like, tomorrow, stop like yogurt or nicotine or, I don’t know, protein, that every athlete use, and they say tomorrow now it’s on banned list. And you stop. But this is stay [in] your body like six months, and doping control is coming, like, after two months, tested you, and you’re positive. This is your fault?”

Salo has qualms about the inclusion in Rio of Efimova and other Russian swimmers who tested positive and has even indefinitely suspended all international swimmers from his Trojan program. But he does not believe in demonizing them for the systemic practices they were reared with in their federations.

“They are unsuspecting pawns in government or federation directives,” he said. “Yulia is a nice woman with too much talent to need performance enhancing supplementation.”

He believes she took meldonium on the advice of her doctor and observes that Eastern Europeans believe heavy training is bad for the system.

“Apparently most of Eastern European athletes think they have to protect their hearts because training is contraindicated,” he said.

Regardless of what anyone thinks of Efimova, it’s hard to see how the American censoriousness against her — or any individual athlete — is a solution to state-sponsored doping. And it’s just begging for anti-American backlash. King is just 19, and you would never want to curb her outspokenness or competitiveness. But it’s worth suggesting to her that a lot of beloved American athletes take supplements and use medical assistance not on the banned list. It’s also worth suggesting that she’s never walked a mile in the shoes of someone born in Grozny in 1992.

“Usually in the Olympic Games, all wars stopping,” Efimova said.

Just before Efimova left Los Angeles for Rio, she saw Salo. Her status had been in question for days and her training in chaos as the International Olympic Committee debated and defaulted on the status of Russian athletes.

“At the last minute they said she would be swimming,” Salo says. “I told her it was going to be hard and that she would not be well received. So be prepared for the hardest racing of her life.”

It’s safe to say the racing was not the hard part.