The document provides a technical overview of two NSA surveillance programs, X-Keyscore and PRISM. It includes an introduction describing how classified training materials on the programs were leaked by Edward Snowden in 2013. The document then gives a brief overview of the capabilities and features of the NSA spying applications, but does not discuss the privacy or policy implications of the programs. It concludes by providing links to primary sources and additional research materials related to the NSA leaks and surveillance programs.