The Wardens of Future's Blight.
A secret organisation that worked collaboratively with the world's governments in order to secure the safety of the world; their role was to eradicate the blight that existed in the world and eliminate all that threatened its future, hence the name.
To the Wardens, there was a specific category of person who posed the highest level of risk when it came to the longevity of humanity.
That is, those who are called the 'Concepts'.
A Concept was an individual whose Measurement bore a certain level of implied significance; it didn't matter if they were particularly powerful or if they were weak, so long as it was something that met this vague criterion.
Either way, they were people who, if left alone to their own devices, would inevitably attract attention in one way or another and therefore wreak havoc in the wider world, whether intentionally or otherwise.