Some passengers on flights within or firm for a U.S. might find “SSSS†printed on their boarding passes, Business Insider forked out this week. That stands for “Secondary Security Screening Selection,†and it entails a 10- to 30-minute additional screening that might involve a consummate hunt of your bags, a full-body pat down, questioning about your transport plans and additional physique scans. Unless something rough turns up, you’ll house as usual after a screening.
Article source: http://www.huffingtonpost.com/entry/ssss-boarding-pass_us_59c544a9e4b01cc57ff203b3?section=us_travel