Can I buy it ?
To my knowledge, nobody sells our system. You will have to build your own.
It is made of widely available parts. Plans and code are available in our CVS repository.
Can I sell it ?
Sure. The GPL licence allows you to build and sell Paparazzis as long as you publish your modifications/improvements.
Won't this just help terrorists ?
No. Please stop asking. They could go buy complete
. Why would they bother building their own?