I recently saw a concert video with Snoop Dogg which showed a hologram of 2pac.
Now if the general public can actually buy and know of this kind of technology then imagine what secret technology could achieve.
In Red Dwalf and some movies like http://en.wikipedia.org/wiki/Escape_from_L.A.
where snake uses a hologram.
Its not a new idea. But possible is this? A hologram so real you would beleive its a real person. In Red Dwalf they call it hard light, the hologram is projected from a small device inside the projected person, and the hologram can touch, push, lift etc...