Here's a second link, in case YouTube version gets pulled - as BBC often ensures happens. I'm not sure of iPlayer rights outside the UK though, but hope it can be viewed as its a really amazing documentary...

http://www.bbc.co.uk/iplayer/episode/b01s94zv/This_World_The_Mafias_Secret_Bunkers/

The part where a smiling Ciccio Pesce starts politely telling the photographers he's "not fond of photographs", before issuing veiled threats to the arresting officers saying he knows they have children... terrifying.

I've never really been interested in 'ndrangheta before, always been more interested in cosa nostra, but this documentary was fascinating. Any decent 'ndrangheta resources around that people would recommend - books, documentaries etc? I really know nothing about them.