Two U.S. senators are demanding answers from TikTok following reports that the social media company intentionally disabled certain safety features for a segment of its user base. Senators Marsha Blackburn (R-TN) and Richard Blumenthal (D-CT) sent a letter on Wednesday criticizing the company for allegedly withholding a "critical safety measure for millions of American users—including children—in order to determine whether protecting users would impact its financial bottom-line."
The senators' letter references earlier reporting that cited a confidential company document. This document reportedly analyzed the account activity of Chase Nasca, a 16-year-old who died by suicide in February 2022. The internal review indicated that Nasca was part of a control group, comprising approximately 10 percent of the platform's users, for whom algorithmic changes designed to prevent repeated exposure to harmful content were not implemented.
According to the internal review, Nasca viewed over 7,500 videos in the two weeks preceding his death. Of these, 73% reportedly featured themes of sadness or personal struggles, and 10% violated TikTok's community guidelines regarding the normalization of suicide or self-harm. The document explicitly stated that "TikTok’s filter bubble prevention strategies did not take effect on this user by design."
In response to inquiries about the document, TikTok stated that it continues to "invest significantly in Trust & Safety, including robust detection systems and dedicated enforcement teams that proactively remove content that violates our Community Guidelines." The company has not yet responded to a request for comment regarding the senators' letter.
Senators Blackburn and Blumenthal cited this incident as justification for the Kids Online Safety Act (KOSA), which recently advanced out of the Senate Commerce Committee on August 5. They stated that KOSA, if enacted, would address practices where platforms design products and algorithms to maximize engagement, with children bearing the consequences. Despite progress, the bill's passage in the current legislative session is uncertain due to ongoing disagreements over legal requirements for companies to prevent foreseeable harm.
The senators have requested that TikTok provide answers by September 1 to a series of questions concerning these "experiments," which they describe as A/B tests where security features were disabled for some users. They also called for the release of the full report related to Nasca’s death and questioned why minors were included in these control groups.
This controversy coincides with a separate, high-profile trial involving Meta, the parent company of Facebook and Instagram. In that case, four state attorneys general accuse Meta of deliberately designing its products to be addictive for minors.






