Dave316's problem has nothing to do with the batteries. It was all customs' doing deciding that they needed to open the package, inspect the contents and unsrew the parts. Probably looking for hidden contraband.
I should note, Dave316's and the other saber damaged by customs were shipped via FedEx. Three other international packages shipped via FedEx were not damaged. The remaining (5 or 6, I think) international packages shipped USPS Global Express (which is handled by FedEx) were not damaged. It's a hit or miss type ballgame with customs. But I doubt they are opening packages looking for Li-ion cells.
As I mentioned, there are still shipping options available - it's just going to cost international buyers more to ship until USPS get's their act together.