A more experienced security guard may have challenged the bomber, Naomi, is what i'm really saying. Which goes back to my earlier point of a shortage of staff, particularly ones qualified to properly carry out search procedures. This guy changed his statement quite a few times and didn't seem confident in himself.
As for my earlier post re searching shoppers in Belfast, we didn't have a choice who to stop. Everyone who wished to enter the precinct was searched, including kids.