Travelers who were flagged with the dreaded code share what SSSS means, what might trigger it, and how to get rid of it.

Anecdotally, it seems that SSSS is given to passengers with more unusual travel patterns, such as one-way international tickets or travel to destinations deemed high-risk by the U.S., such as ...

You both notice the ominous "SSSS" on your boarding pass, a hiccup in your travel journey. But what happens next? What do ...