This exactly. Encrypt the laptop but don't actually keep anything important on it. Instead use Truecrypt and a USB thumb drive. Have the thumb drive keyed to a different password than the laptop.
Further, as far as customs, drop a live CD of any variety in the CD drive, and have the laptop default to booting the CD. Now when custom guys asks to inspect your laptop, say sure, and let it boot the live CD. You can be amused while they laugh at how slow your laptop boots. In the end let em clone the HD, whatever, even if the NSA cracks it there is nothing on it. Everything important is on the thumb drive that you have "hidden" away (usually in plain sight on a keychain).
As far as the article, carrying your corporate secrets encrypted in your pocket will make any thieves job harder, and having the laptop encrypted will force them to install keylogger hardware, a more time consuming and harder thing to get away with. If I were such an executive and had real concerns I would just get a throwaway laptop, or better yet have some fun and epoxy all the case screws in. There are possibilities.