I would campaign for fifteen dollars to be written as 15$. The other way around makes no sense. Dollars is the unit, and you say “fifteen dollars” and not “dollars fifteen”. That we landed on the backwards convention is a travesty.
Sure, 15$ wouldn’t get me far, but it’s a start!
A lot of people around me tend to parrot that a lot of the safety measures are not for explosives detection, but for drug trafficking prevention. I’ve always disagreed because nobody ever presented any evidence to it, and the measures in place do come from explosive detection (unless they have metal drugs now idk). But I’ve wondered whether there is some truth to it.