Nick Catrantzos of the Control Risks Group, an international firm based in London, England, said kidnapping groups are organized and entrepreneurial.

CNN: Kidnapping is big business in Colombia

Montenegro, a country whose economy relies heavily on tourism and has been developing its status as a boutique resort for wealthy Russians, has had healthy relations with Russia, thanks in part to its relatively peaceful stance during the Balkan wars, according to Sorana Parvulescu of Control Risks Group, a specialist risk consultancy.

FORBES: Gambling