See, this is a problem that many people are causing. "I don't mind bending over at the airport for an anal probe every time I travel, as long as one priceless and irreplaceable life is saved". I think this is a very naiive viewpoint, for the following reasons.
1) For a start, we have 6 billion+ people on this planet, we are not priceless and irreplaceable.
2) It's all a question of balance. We could save thousands of lives a year if we banned the motor car (or even reduced all speed limits to 10mph); do you think that's worth it too, "
if one life was saved"? I do not, because the cost would have a huge negative effect on people, so we choose to accept the risk. Could you explain why a 0 for 300,000 success rate in terrorism stop and searches is an acceptable use of our resources, and why terrorism is so different to the other thousands of risks we deal with in daily life? It seems that it is a huge scarecrow to persuade people to hand over more of their freedom to the government.
3) The risk itself is laughably low to be wasting this level of money on. More people die from falling over on a level surface than from terrorism. More people die from falling out of bed, or falling off a chair, than from terrorism. How about being "bitten or struck by other mammals". Statistically, that's more dangerous to you than terrorism, but I don't see 300,000 cows being stopped and searched. Hell, one guy a year dies from overuse of laxatives. Terrifying, yes, and also about as dangerous overall as terrorism. Logically, why is it right to waste all this time and money on a very low-level risk, when it could achieve far better 'life-saving results' elsewhere?