A U.S. appeals court in San Francisco allowed thousands of lawsuits to proceed Monday against Meta, Google, TikTok and Snapchat for designing products that are addictive to young users. Attorneys representing thousands of school districts and individuals suing Meta and other companies said in a statement, “A trial is how the public finds out what Meta knew about its products’ impact on children, when it knew it, and what it chose to do with that knowledge. Meta has fought to keep that evidence from the public.”