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In page Trafficking of children:

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The trafficking of children has been internationally recognized as a serious crime that exists in every region of the world and which often has human rights implications. Yet, it is only since 2002 that the prevalence and ramifications of this practice have risen to international prominence, due to a dramatic increase in research and public action. Limited research has not yet identified all causes of child trafficking, however, it appears that poverty, humanitarian crisis, and lack of education contribute to high rates. A variety of potential solutions have accordingly been suggested and implemented, which can be categorized into four types of action: broad protection, prevention, law enforcement, and victim assistance.[citation needed]