Nirvana artifacts and exhibits are seen at the opening of In Bloom: The Nirvana Exhibition, at a London art gallery on Sept. 13, 2011. The album's 20th anniversary featured a $20 bill, but the original album had a $1 bill. Samir Hussein/Getty Images hide caption
This May 21, 2021 photo shows the Apple logo displayed on a Mac Pro desktop computer in New York. Apple is planning to scan U.S. iPhones for images of child abuse, drawing applause from child protection groups but raising concern among security researchers that the system could be misused by governments looking to surveil their citizens. Mark Lennihan/AP hide caption
Attorney General William Barr announced an update in the investigation of the deadly shooting last month at a naval base in Pensacola, Fla. He said Monday: "This was an act of terrorism." Jacquelyn Martin/AP hide caption
The Department of Justice announced that hundreds of people have been charged in the takedown of a massive darknet child pornography website. Jose Luis Magana/AP hide caption
Mike Folmer was arrested on Tuesday on child pornography charges filed by the state Attorney General's Office. According to charging documents, Folmer told police he had been "dealing with some personal problems." Marc Levy/AP hide caption
The Sunspot Solar Observatory in New Mexico mysteriously shut down for 11 days in September, citing a security issue. Authorities were investigating a janitor for distribution of pornography. Sunspot Solar Observatory/https://sunspot.solar/ hide caption
The cabin sits about 8 feet off the ground and was made with high-quality construction materials, solid wood planks and heavy-gauge bolts. Courtesy of King County Superior Court hide caption
Documents show the FBI paid technicians on Best Buy's Geek Squad for reporting suspected child pornography found during computer repairs. Tim Boyle/Getty Images hide caption
Mark Salling, one of the stars of the Fox musical comedy "Glee," died Tuesday. He was 35. Salling pleaded guilty in December to possession of child pornography. John Shearer/John Shearer/Invision/AP hide caption
Former USA Gymnastics doctor Larry Nassar was sentenced on Thursday for possession of child pornography. He is pictured here in court in Lansing, Mich., last month. Jeff Kowalsky/AFP/Getty Images hide caption
The Vatican's diplomatic mission in Washington, D.C. Cliff Owen/AP hide caption
Larry Nassar, a doctor who treated female gymnasts and is accused by many of molesting them, pleaded guilty to child pornography charges on Tuesday. Michigan Attorney General's Office/AP hide caption
This photo provided by the Centre County Correctional Facility shows Jeffrey Sandusky, who was charged Monday with sexual offenses involving children. Sandusky is a son of former Penn State assistant coach Jerry Sandusky. AP hide caption
The website Backpage has removed adult advertisements. A Senate report last year accused the website of being a forum for child sex trafficking. Backpage/Screenshot by NPR hide caption