The actor testified Wednesday before the Senate Foreign Relations Committee in a hearing on progress in combating modern slavery. Kutcher spoke on behalf of Thorn: Digital Defenders of Children, an organization he co-founded with then-wife Demi Moore in 2009 that builds software to fight human trafficking.

Kutcher pressed the importance of using technology as a tool that can be used to disable slavery, citing specific progress.

"It's working. In six months, with 25% of our users reporting, we've identified over 6,000 trafficking victims, 2,000 of which are minors. This tool has enhanced 4,000 law enforcement officials in 900 agencies. And we're reducing the investigation time by 60%," he said of a software tool called "Spotlight."

I don't know if the following application is related to Thorn, but I read an article last week about a new cell phone application that is now more and more used by hotel guests worldwide: people simply use their phone to take a picture of each wall of the hotel room where they are staying; the application automatically provides the GPS info (longitude and latitude of the hotel). These pics, automatically sent to a law enforcement data base by the application, allow law enforcement to search for small details in hotel rooms (flowers in the carpet, paintings on the walls, window view of buildings, etc) that are found on pics of children that are offered for sale/rent in hotel rooms. The app is called traffickcam https://traffickcam.com/

https://www.washingtonpost.com/news/inspired-life/wp/2016/07/01/how-simply-snapping-a-photo-of-your-hotel-room-could-save-trafficked-children/?