Tourism a force for good? how have some benefited from tourism?yet what problem has it created?what are the future prospects for world travel?

Worldwide, tourism generates an estimated four trillion dollars annually.individual tourist may not view themselves as part of a worldwide peace movement,but this is how the UN world tourism organization describes the industry.In 2004, Francesco Frangialli , secretary general of the organization,told a presidential conference in the middle East:"Tourism and peace are inseparable.The Force unleashed by tourism are so powerful that they can change apparently irreversible situations and bring about reconciliation where none was considered possible."What are the origins of this influential industry?Is tourism truly a force for good?And can"the forces unleashed by tourism"really bring peace?