http://www.securityfocus.com/cgi-bin/sfonline/columnists-item.pl?id=215


" I asked him about that, and he told us that many of the computer
security folks back at FBI HQ use Macs running OS X, since those
machines can do just about anything: run software for Mac, Unix, or
Windows, using either a GUI or the command line. And they're secure out
of the box. "