What annoys me about stories on the reg is the ill-informed comments people make. "I know, lets take everything at face value and make cynical comments"
This isnt just about stopping terrorism, there are other types of crime you know. So yeah, you can't stop people planting bombs in the tube, but you can stop known criminals getting in/out of the country. The person who said it costs $52k per person (£26k) - if that crime meant you didnt lose a loved one would you not consider that a fair amount to pay?
And re: the John Smith comment, the people who design these systems aren't daft enough to base things on just name. Lets think what other data people supply, DOB, passport, address, contact details... yeah? they're not stoopid.
Lets think about this stuff people.