Revealed: Mandelson vetting warned of ties to senior figures in China, Russia and Israel

Exclusive: Vetting officials also flagged £1m loan when recommending he should be denied security clearance

The Guardian
@JorisBohnsonPM

The Kompromat which leads to their appalling behaviour?

The point of vetting, as far as I can tell, is to uncover vulnerabilities to blackmail and coercion so the vetter / their employer, can have a malleable individual.