It actually should be noted that anywhere anyone from DHS/TSA is directly quoted about WBI in a media article/press release, that quote has always been some form of "that function has been disabled." Very clearly different from "that function does not exist." By all appearances, as I have stated in other posts, these devices appear to be two networked workstations for each WBI point - (1) WBI arch, with image generation capability, (2) workstation where viewing is accomplished, (3) connected by some form of network (whether proprietary or standards-based remains to be seen). If they are, in fact, networked devices, there is some form of storage required during transmission from point 1 to point 2.