Facebook, Twitter and Google have warned the Obama administration that a proposal to beef up child privacy laws could hamper America’s ability to “like,” tweet and share information across the Web.

And aside from hurting their potential to make fortunes from all that information swapping, the Internet giants say new rules would undermine free speech.

The Silicon Valley companies filed written responses to plans by the Federal Trade Commission to update the Children’s Online Privacy Protection Act of 1998, or COPPA, a law written before a majority of U.S. youths owned smartphones, apps began tracking locations and Facebook’s “like” button was ubiquitous on the Web.

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