We can't keep weapons out of prisons; we can't possibly expect to keep them out of airports.

Liberty requires security without intrusion, security plus privacy.

Privacy is a fundamental human need.

The whole notion of passwords is based on an oxymoron. The idea is to have a random string that is easy to remember. Unfortunately, if it's easy to remember, it's something nonrandom like 'Susan.' And if it's random, like 'r7U2*Qnp,' then it's not easy to remember.

Technical problems can be remediated. A dishonest corporate culture is much harder to fix.

There are two types of encryption: one that will prevent your sister from reading your diary and one that will prevent your government.

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.