The Poor-Man's Guide to Modernity - Independent Media Center

dangerous items such as weapons or improvised explosive devices off of
planes.
So, what might cause you to receive a pat-down? Passengers may receive a
pat-down in a number of circumstances: to resolve an alarm at a walk-through
metal detector; if an anomaly is detected during screening with advanced
imaging technology; or during random screening. Passengers who opt out of
enhanced screening such as advanced imaging technology will receive an
equivalent level of screening to include a thorough pat-down. Remember, you
can always request to be screened in a private area.
You shouldn’t expect to see the same security procedures at every airport. Our
security measures are designed to be unpredictable and are constantly
assessed and updated to address evolving threats.' ---
http://blog.tsa.gov/2010/08/enhanced-pat-downs.html
Postscript-3 A closer look at an Image from the AIT (Advanced Imaging Technology)
Body-scan machine vs. photoshop
The Poor-Man's Guide to Modernity 232 / 334 Zahir Ebrahim