Hundreds, perhaps thousands, of videos appearing on pornography websites across the world show women being sexually abused, and search engines—including the world’s most powerful site, Google — continue to do little to stop these disturbing materials from appearing on their websites.

In 2015, I began investigating the presence of videos that appear to show women being raped on three of the world’s most popular and influential search engines: Google, Yahoo, and Microsoft’s Bing. That investigation, which would continue into 2016 and earlier this year, revealed that hundreds of videos showing women being sexually abused currently exist and are readily available using simple search terms on search engines’ websites, such as “passed out girl abused.”