The Islamic State isn't making as much news as it once did, as the so-called caliphate continues to decline in size and, in some ways, power. However, it leaves behind a complex legacy of persecution, torture, slavery and, yes, genocide.

There are many victims with stories to tell and it's clear that some journalists and diplomats have not mastered all of the details of this tragedy.

Consider the Washington Post story that ran the other day with this headline: "‘Somebody had to tell these stories’: An Iraqi woman’s ordeal as an ISIS sex slave." It's a horrifying and important story.

The Post international desk did a fine job of presenting the story of Yazidi survivor Nadia Murad. That's important, since the Yazidis remain an obscure religious minority for most American readers.

But there is a problem: The Post report never mentions that the Yazidis were not alone. Christians, Shia Muslims and others suffered the same fate, with mothers, fathers and sons slaughtered and girls sold as sexual slaves. As Secretary of State John Kerry said in 2016:

... (In) my judgment, Daesh is responsible for genocide against groups in areas under its control, including Yezidis, Christians, and Shia Muslims. Daesh is genocidal by self-proclamation, by ideology, and by actions -- in what it says, what it believes, and what it does. Daesh is also responsible for crimes against humanity and ethnic cleansing directed at these same groups and in some cases also against Sunni Muslims, Kurds, and other minorities.

Kerry went on to specifically say that "Daesh captured and enslaved thousands of Yezidi women and girls -- selling them at auction, raping them at will, and destroying the communities in which they had lived for countless generations." He added: "We know that in Mosul, Qaraqosh, and elsewhere, Daesh has executed Christians solely because of their faith ... and that it has also forced Christian women and girls into sexual slavery."

The problem isn't that the Post focused so tightly on the details of Murad's story, since her testimony is what this report is all about. The problem is in the summary paragraphs that failed to inform readers that women and girls in other religious minorities suffered the same faith.