I think that bad news in some powerfull media (t v, newspaper and internet can be negative to tourim developement. Some countries face politic unstability but can receive tourists, but somtime some powerfull international media give only bad news on these countries. So, tourists do not visit them. Oftenly, countries with high criminality, civil war and so on, receive tourist from around the world, because they beneficiate from media (tv, news papers, etc.) good news.
NB Excuse me my English