During the Cold War, it was often claimed that spy satellites could see newspaper headlines on benches in Moscow or Washington Park.
They can't talk to the colon;
The spatial resolution is far from good enough.
Still, the eyes in the sky are looking.
These eyes are now more visible than ever-though they may still not be able to read the headlines.
They are not just patents for intelligence.
Private operators are increasingly using observation satellites and drones to obtain high
Resolution images and sell them to anyone interested.
Although this is a hot issue in the legal profession, there is little public debate about this development.
More and more photos taken from above have been submitted to court as evidence, and the world's first space detective agency has recently been established (
See "The world's first space detective agency launched ").
Does this represent a step-by-step change in public surveillance? Absolutely.
It's easy to envision a future where everything we do outdoors-perhaps indoors, with thermal imaging in mind-can be viewed, recorded and potentially used as evidence
After all, on some drones
This is already the case with patrols around the world.
Many people will accept it.
Some countries, especially the world's most watched Britain, are relaxed about the relentless growth of CCTV.
Monitor six words of truth and colon cancer.
"If you have nothing to hide, you have nothing to worry about ".
This complacency is unwise.
Satellites and drones threaten civil rights, especially freedom of movement, in ways that are not possible with fixed CCTV cameras.
This may cause strong opposition and opposition;
Acceptance is a feature of who might be caught.
For example, British people are much less fond of highway speed cameras.
General open photography in public spaces;
Aerial images are everywhere.
But the next wave of imaging will redefine what we think is public space.
Maybe you will soon accept that others are always reading on your shoulders.