In early 2009, the FBI organized a nationwide sting operation to rescue victims of sex trafficking and arrest their pimps. Shockingly, idyllic Portland, Oregon, yielded the second highest number of arrests and underage victims in the country. The outcry from Portland law enforcement, politicians, and women’s and children’s advocacy groups was swift and loud. Mayor Sam Adams often said that Portland police saw an average of two cases of child sex trafficking each week. Various factors were blamed in the city-wide dialogue: the local government’s lax regulation of strip clubs attracted both prostitutes and johns; Portland’s location along a Northwest highway corridor made traffickers’ jobs easy.

So in January 2010, when reporter Nikole Hannah-Jones was working the weekend shift at The Oregonian, and was assigned to cover the second annual Northwest Conference Against Human Trafficking, she quickly wrote a six-hundred-word story. HUMAN TRAFFICKING INDUSTRY THRIVES IN PORTLAND METRO AREA, the headline read.

Portland’s stigma as a “hub” for forced prostitution soon began to receive national attention. Senator Ron Wyden had just introduced a bill to send more funding to Portland law enforcement and to build shelters for trafficking victims. HDNet aired a melodramatic but thinly sourced episode of Dan Rather Reports called “Pornland, Oregon,” in which Rather highlighted the irony that “one of the country’s most liveable cities” had such a seedy underbelly. Over shots of Portland’s railroads, ports, and highways, Rather’s voiceover intoned, “Easy transit means easy trafficking, as girls are moved from place to place to keep up with growing demand.” ABC’s World News with Diane Sawyer and Nightline produced similar stories. The city’s reputation had all but solidified.

On the occasion of the next annual conference, Hannah-Jones decided to write a more in-depth piece on the issue. When she started digging, though, she soon found an even bigger story: none of it was true.

The FBI told Hannah-Jones that the number of underage prostitutes found in Portland during the 2009 sting (seven) was never meant to be used for city-to-city comparisons. Stings could last a month in some cities and one night in others—the result was a snapshot, not a scientific study. The supervisor of the Portland police sex-crimes unit told her that the mayor’s two-arrests-weekly figure was false.

National statistics used by local advocates and politicians were merely estimates, or otherwise faulty; the “200,000 to 300,000 US youth” figure cited to quantify the child sex trade was taken from an academic study whose author stressed to Hannah-Jones that it was a wild guess, extrapolated from interviews with a few hundred teens. Worse, it actually referred to those who were “at risk of sexual exploitation,” which included a wide range of crimes, such as molestation by family members. And as for the “transit hub” explanation: well, what major city isn’t easily accessible by highway and train?

In short, every single statistic that advocates and politicians had used to justify Portland’s label as a “hub” of child sex trafficking fell apart under Hannah-Jones’s scrutiny. The Oregonian printed the story on its front page on January 14, 2011, with the headline STORY OF ‘PORNLAND’ IS A MYTH.

Hannah-Jones’s editor, Michelle Brence, says she is embarrassed to admit that The Oregonian had previously relayed the advocates’ statistics. “We had to note in our own stories that we had been among the culprits, reporting some of the bad information,” says Brence. But, she says, it was important to correct the record—and the organizations with so much federal funding at stake weren’t going to do that.

“The truth is the truth,” Hannah-Jones says. “Just because it’s a story that pulls on our heartstrings, we can’t use false data to draw money into the county. You can’t do that.”

For Hannah-Jones’s thorough and even-handed effort to de-sensationalize this story, The Oregonian gets a LAUREL.

Lauren Kirchner is a freelance writer covering digital security for CJR. Find her on Twitter at @lkirchner