What could possibly have made Lord Mandelson fail his security vetting? REBECCA CAMBER investigates

REBECCA CAMBER: Over three decades as an MP, government minister, privy councillor, peer and Labour grandee. Yet officials still said Lord Mandelson couldn't be trusted.

What could possibly have made Lord Mandelson fail his security vetting? REBECCA CAMBER investigates
REBECCA CAMBER: Over three decades as an MP, government minister, privy councillor, peer and Labour grandee. Yet officials still said Lord Mandelson couldn't be trusted.