The newest leaked draft of the Anti-Counterfeiting Trade Agreement (ACTA) is proposing that border security will have the ability to inspect digital devices, determine whether they contain “infringing material”, and then confiscate them.
So if you have MP3’s on your iPod leally ripped from you CD, they get to confiscate it without any due processas, “The draft allows for the confiscation or destruction of any device the agents deem suspect.”
The draft is available at WikiLeaks.