The more technological a society is, the greater the security gap is.

Air 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.

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

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

It is insufficient to protect ourselves with laws; we need to protect ourselves with mathematics.

And honestly, if anyone thinks they can get an accurate picture of anyplace on the planet by reading news reports, they're sadly mistaken.

I tell people: if it's in the news, don't worry about it, because by definition, news is something that almost never happens.