The SSSS mark is also handed out when you purchase your ticket shortly before the flight or when you pay in cash, or at the discretion of the airline. I've endu

The SSSS mark is also handed out when you purchase your ticket shortly before the flight or when you pay in cash, or at the discretion of the airline. I've endured it more times than I care to recall because I frequently change my travel plans. http://en.wikipedia.org/wiki/Secondary_Security_Screening_Selection http://en.wikipedia.org/wiki/Secondary_Security_Screening_Se...