In case you have not been paying attention to the news, it is not hard to hack smartphones and your portable gadgets using a USB charger. When you are on the road, you should make sure you only use a reliable USB charge station. Picking up one of these LockedUSB Adapter might help too. LockedUSB enables USB charging but disconnects the USB data lines. It charges your gadgets fast and offers surge protection.
LockedUSB is easy to use. Just plug it into your USB port, and use the cable you have. The project was fully funded on Kickstarter which is nice to see.