lovely.. not!

[denelmor]

Travelers' Laptops May Be Detained At Border
No Suspicion Required Under DHS Policies

http://www.washingtonpost.com/wp-srv/content/article/2008/08/01/laptops.html?hpid=topnews

and the doc itself:
http://www.cbp.gov/linkhandler/cgov/travel/admissability/search_authority.ctt/search_authority.pdf