Slavery in the 21st century
Modern slavery can be quite profitable, and corrupt governments silently allow it, despite its being outlawed by international treaties such as Supplementary Convention on the Abolition of Slavery and local laws. Total annual revenues of traffickers were estimated in 2014 to over $150 billion, though profits are substantially lower. American slaves in 1809 were sold for around the equivalent of US$40,000 in today's money. Today, a slave can be bought for $90–$100.