Man, I am going to be paranoid as f%!# from now on, when going through security. If my laptop disappeared, it would screw me over pretty good. I mean, not in the sense that I'd lose anything that is literally irreplaceable, (well, not irreplaceable AND particularly valuable) but it would be a huge time and energy sink to recover from that.
Last time I lost a laptop, was when somebody stole my laptop bag out of my truck (I forgot to lock it one night while I Was in Barnes & Noble having a coffee). That was a double-whammy, because the USB drive with my backups was in the same bag. :-(
The only saving grace then was that most of my really important data is actually in "the cloud" somewhere (eg, code at GitHub) and that I had an older backup of most of my files on another computer that I bought and used temporarily after I spilled coffee on my old laptop (it started working again after it had a few days to dry out, so I switched back to it).
Anyway, after reading this, I think I'm going to go get another 1TB USB drive, and start keeping a set of backups that I leave at home, instead of carrying around in my laptop bag. That or start pushing stuff to S3 or something. Code is already in GitHub, but there's a lot of other stuff I'd hate to lose.