How much would you pay for diplomatic immunity? The trade-in Caribbean diplomatic passports has become a magnet for wealthy foreigners, corrupt businessmen, and criminals from around the world.Al Jazeera exposes two prime ministers who are complicit in the deals.The investigation reveals details of how an oil smuggler, turned ambassador, turned international fugitive bought his way into the diplomatic class.Investigators go undercover to reveal the inner-workings of a secret system: to find out how much it costs and what it takes to purchase what’s become the ultimate luxury item a diplomatic passport.