Human trafficking is a crime against humanity that involves exploiting people through force, coercion or deception for purposes such as forced labor or prostitution. It is estimated that 700,000 to 4 million people, mostly women and children, are trafficked worldwide each year, generating $7 billion in profits. Trafficking can have severe psychological effects on victims such as depression, trauma and lack of trust. The FBI's Los Angeles task force works to address human trafficking in the region.