Everytime we hear of a new "technology" that will make us "safer", I wonder what the downside is.

For instance, if we develop lasers that can eviscerate an incoming nuclear warhead (a good thing), than we will also have the power to eliminate any human on the planet at any time (a bad thing).

Here's another one. They use those new airport security cameras that weed out terroists to map the weight and height and even our clothing preferences, and that information is sold to corporate America.