According to the latest news we are likely to consider NSA as pure evil. Reality is that NSA does even what she is designed for: protect US citizens.
Regarding to the computer’s world, NSA releases a quite good documentation on how to secure systems and softwares.
I’ve followed the directives to enforce the installation of Adobe Acrobat Reader X (document is designed also for XI) and I’ve found it really useful.
Document is designed for systems that are accessed by more than one user and describes how to lock or unlock definitely some options directly in the Windows Registry, bypassing the user settings. Also is described how to set advanced options and operate on menus and program capabilities.