The Kids Online Safety Act (KOSA, S. 1748) has been introduced by Senators Marsha Blackburn (R-TN) and Richard Blumenthal (D-CT) and is cosponsored by 3/4 of the Senate. The bill is pending in the Senate Commerce Committee. The measure establishes a legally relevant “duty of care” for social media companies, requiring platforms to alter design features such as algorithms that harm children. The bill is written to especially protect marginalized and vulnerable children from rampant online harms like child sexual exploitation, romantic fantasies, illicit drugs, suicide instruction, harassment, eating disorder content, and more.