I don't use LastPass for more important sites like banking (or even email), but I certainly use it to generate and store a secure password for all the random web forums I visit.
I'm sure there's been a few cheapo CFLs over the years that have died, but they're not most recent either and I have no idea how long they lasted.
Given that is asks for my most recent, I'd have to say it's never failed, but the option "Never had one fail" refers to any bulb. Guess 3+ it is
We are less safe than ever and we have done it to ourselves.
Actually, we're MORE safe than ever, despite what we've done to ourselves with ridiculous measures. Education and social programs do a much better job than metal detectors.
What does seem interesting is the idea at the end of the article of constructing a printer on site and having it print out more interesting shaped houses. In that case, there would be tremendous gains since this machine is very flexible in the patterns it can print. A work crew could spend a few days setting it up, 24h to print the house, then a few days polishing and cleaning up the printer. The roof might take a bit more time, but it could still be useful.
More interesting statistics would be the number of people that use devices at all during the flight, though that would be more difficult to determine.