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 ...

Drop-down lists in Excel are a great way to speed up data entry, keep your sheet tidy, and avoid typos. No formulas required!

To save a prompt as a model, select the prompt from the sidebar, then click the Settings icon in the top-right of the Reins window. In the resulting pop-up, click "Save as a new model," which will ...