Being a security guy, I travel with a lot of hardware, it typically confuses the TSA bozos and they leave me alone. I have yet to have anything confiscated with the exception of a tube or toothpaste that exceeded 3 ounces (good grief). For you guys that travel internationally - beware, the computer crime statutes are very different in some places and though the hardware may seem benigne, getting caught operating one could land you in some very hot water. Germany is a good example.