Aug 28 2015
Save
Feb 21 2014
Save

1926: One of the world's first walk-through metal detectors, invented to search employees leaving a manufacturing plant in Germany. [April 1926 issue of Radio News]
Save
Jan 17 2013
Save
Mar 26 2012
Save
Sep 10 2010
Save
Jul 10 2010
Save
Jun 7 2009
Save
Apr 7 2009
Save

Save
While the TSA introduced whole body scanners as a means to search passengers posing a greater security risk (like…