FlyerTalk Forums - View Single Post - How often is 'random' on TSA Pre-Check divert for more screening
Old May 7, 2018, 4:15 am
  #13  
saizai
 
Join Date: Dec 2010
Posts: 962
On the subject of "random" selection, take a look at the 2011 SPOT study's description of how SPOTniks are apparently not capable of doing random selection, p. 50–51/194–95 (Bates 4468–69).
saizai is offline