Read the August 27, 2009 statement from the Department of Homeland Security
                          regarding Border Searches of Electronic Information.

                          ::::>>>>  http://www.dhs.gov/ynews/releases/pr_1251393255852.shtm

                         From that link, you can also access the directives published by both ICE and CBP.


        USA  SEARCHES OF LAPTOP COMPUTERS AND OTHER ELECTRONIC DEVICES AT PORTS OF ENTRY

                      Many individuals, both US citizens and foreign nationals, enter the United States
                      with laptop computers and other electronic devices.  
                      U.S. Customs and Border Protection (CBP) has recently updated its website
                      with information on their search policy for such items.



                       Travelers should be aware that
                        "both CBP and ICE" have the right to search any form of electronic media,
                         which CBP and ICE define as any item that may contain information, including computers,
                         floppy and compact disks, DVDs, drives, tapes, mobile phones, personal digital assistants or PDAs,
                         BlackBerry smart phones, cameras, and music players (including iPods and MP3 players),
                         without necessarily suspecting that the individual may be carrying unlawful information.  



                       Part of this policy is based on CBP’s concern that such searches are essential
                       to prevent terrorists from transporting information over the border.  

                       CBP has stated that such searches are limited in scope, and that out of 400 million travelers
                        passing through U.S. borders annually, only a tiny percentage are referred to
                        secondary baggage inspection and of those, only a fraction have electronic devices that may be checked.
  


                       Despite the limited number of electronic devices that are checked,
                       travelers need to be aware of what is on their computers and other electronic devices.  

                       You should remove any problematic content.  

                       If the computer or other electronic device is used by others,
                       check the browser history and make sure that the contents will not cause problems if searched.

                    
                     Quote: Searches of electronic media, permitted by law and carried out at borders
                     and ports of entry, are vital to detecting information that poses serious harm to the United States,
                      including terrorist plans, or constitutes criminal activity —
                      such as possession of child pornography and trademark or copyright infringement.


                                                     Have a good trip na ja.