That's the perfect terminology. We have primary, where you show your passports and get your first-level questioning and put in your declaration card or you go through a kiosk at an airport. This is secondary, if you're referred for an examination. It's that more detailed examination, where we start with non-intrusive, through the use of this technology, and then move progressively more intrusively.
On March 20th, 2018. See this statement in context.