Agents use facial recognition, social media monitoring and other tech tools not only to identify undocumented immigrants but also to track protesters, current and former officials said. By Sheera ...

Water powers our lives. It feeds our crops, keeps factories running, generates electricity, and fills our taps. But until now, no one had a clear, national picture of how much water we're using—and ...

Bitcoin is a decentralized digital asset. It is a new type of asset that joins the ranks of traditional assets such as cash, gold, and real estate. Use the multichain Bitcoin.com Wallet app, trusted ...