Glen Greenwald started writing about this back in 2012. >One of the more extreme government abuses of the post-9/11 era targets U.S. citizens re-entering their

Glen Greenwald started writing about this back in 2012. >One of the more extreme government abuses of the post-9/11 era targets U.S. citizens re-entering their own country, and it has received far too little attention. With no oversight or legal framework whatsoever, the Department of Homeland Security routinely singles out individuals who are suspected of no crimes, detains them and questions them at the airport, often for hours, when they return to the U.S. after an international trip, and then copies and even seizes their electronic devices (laptops, cameras, cellphones) and other papers (notebooks, journals, credit card receipts), forever storing their contents in government files. No search warrant is needed for any of this. No oversight exists. And there are no apparent constraints on what the U.S. Government can do with regard to whom it decides to target or why. https://www.salon.com/2012/04/08/u_s_filmmaker_repeatedly_detained_at_border/ https://www.salon.com/2012/04/08/u_s_filmmaker_repeatedly_de... Laura Poitras, the documentary filmmaker whose story was told in the above link faced several dozen of these incidents between the Bush and the Obama years. Interestingly, Edward Snowden learned who Poitras was from this series of stories, and Poitras' experiences with repeated searches and seizures led to her learning enough about encryption so that when Snowden decided to contact the press and become a whistleblower, Poitras was the first journalist he attempted to contact who knew enough to be able to exchange encryption keys and communicate with him directly.