Technology is always a two edge sword.
Every advance in weaponry inspires more advances in p
rotective or defensive measures, and technology -o
nce employed for one purpose - will inevitably be copied a
nd used for other purposes.
In aviation, anti-sabotage and anti hijacking measures h
ave grown from X-ray and metal detectors to
explosive detection, hard to counterfeit picture IDs, watch and N
o-Fly lists. Drones developed to spy on and k
ill terrorists, are now widely dispersed in the US and may s
oon be used by terrorists against us.
What is to prevent facial recognition from being u
sed by law enforcement to apprehend wanted persons or traffic offenders, b
y debt and tax collectors and by private detectives?
The freedom to travel by air has been a boon opening the world to hundreds of m
illions in the 20th century. But a major challenge of the 21st century is h
ow to maintain this freedom without creating a police state or destroying any semblance of personal privacy.