From Wired’s Threat Level blog:

Federal agents at the border do not need any reason to search through travelers’ laptops, cell phones or digital cameras for evidence of crimes, a federal appeals court ruled Monday, extending the government’s power to look through belongings like suitcases at the border to electronics.

Lets say you are coming back from a vacation in Europe. Well, US border agents without a warrant, and for no reason at all, can take your laptop, camera and cell phone and do with them what they please – read all your emails, go through your writing, even loop through your tax returns without any evidence you committed a crime. We move closer to 1984 everyday.