If someone steals your password, you can change it. But if someone steals your thumbprint, you can't get a new thumb. The failure modes are very different.
Bruce SchneierThe real targets of terrorism are the rest of us: the billions of us who are not killed but are terrorized because of the killing. The real point of terrorism is not the act itself, but our reaction to the act. And we're doing exactly what the terrorists want [...] Our politicians help the terrorists every time they use fear as a campaign tactic. The press helps every time it writes scare stories about the plot and the threat. And if we're terrified, and we share that fear, we help.
Bruce SchneierAnd honestly, if anyone thinks they can get an accurate picture of anyplace on the planet by reading news reports, they're sadly mistaken.
Bruce SchneierAir travel survived decades of terrorism, including attacks which resulted in the deaths of everyone on the plane. It survived 9/11. It'll survive the next successful attack. The only real worry is that we'll scare ourselves into making air travel so onerous that we won't fly anymore.
Bruce Schneier