In
The Light of Other Days, the wormcam is the ultimate in surveilance technology. Utilizing technology to stabilize and enlarge
quantum wormholes, the wormcam pipes in
photons from almost any other place within its range (which grows
exponentially with new technology throughout the book), or, pointing it in another direction in
space-time, from the past (that is, one year into the past for every
light-year of range). The
computers built into a wormcam then create an
image from them, showing you a picture of anything going on at any time in the
present or
past (except a
few, or perhaps only one, events so packed full of wormholes that viewing them is difficult, if not impossible).
Needless to say, the end of
privacy brings about some rather
drastic social changes.