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 ...

Everything you need to know about the new Star Wars movies and TV shows releasing in the next few years When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...