Since 1996, the modern internet has been defined by a sweeping law that prevents tech companies such as Facebook and Google from being held responsible for the content posted on their sites.This week, the Supreme Court heard arguments in a case that could take that legal immunity away.Guest: Adam Liptak, who covers the Supreme Court for The New York Times.Background reading: The decision on website immunity has the potential to alter the very structure of the internet.Lawmakers are targeting big tech “amplification.” What does that mean?For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.