A coalition of Internet companies and social media giants -- Microsoft, Google, Facebook, Roblox, Twitter and Snap -- is backing a set of 11 principles put forth by the US, the UK, Australia, Canada and New Zealand to fight the spread of online child exploitation. Meanwhile, a bipartisan group of US senators has introduced the EARN IT Act, which would allow the government to strip away tech companies' legal immunities for what their users post if the companies fail to crack down on online child sexual abuse.