Food for Secure Computing Thought :
When traveling outside your country, LEAVE THE TOYS AT HOME!
Industrial espionage may be more of a threat than theft as you travel abroad. And don't just leave your toys at home, check everything you bring back very carefully! Treat any media as infected, be it optical ( CD/DVD/HDDVD/BluRay ), solidstate ( USB and other flash media, Solid State hard drives ) or magnetic ( internal or external hard drives ).
The article linked above has some very interesting and thought provoking comments.