The National Security Agency says its massive new data center near Salt Lake City will enhance the agency's ability to analyze the email, text message, cellphone and landline metadata it collects. Rick Bowmer/AP hide caption

itoggle caption Rick Bowmer/AP

Researchers are using MRI scans to learn more about the brains of people with extraordinary memory. iStockphoto.com hide caption

itoggle caption iStockphoto.com