If you are fascinated by the NASA/North American XB-70 program from the ’60s, as I am, you might enjoy these QuickTime movies.
![XB-70 Valkyrie](http://observe.arc.nasa.gov/nasa/gallery/image_gallery/aero/graphics/valkyrie.jpg)
Who Are You? What Do You Want? Where Are You Going? Whom Do You Serve – And Whom Do You Trust?!
If you are fascinated by the NASA/North American XB-70 program from the ’60s, as I am, you might enjoy these QuickTime movies.