wanting to illegally migrate and the involuntary trafficking of people. An estimated 90% of people who illegally crossed the border between Mexico and the United States are believed to have paid a smuggler to lead them across. People smuggling can be used to rescue a person from oppressive circumstances. For example, when the Southern United States allowed slavery, many slaves moved north via the Underground Railroad. Similarly, during the Holocaust, Jewish people were smuggled out of Germany by people such as Algoth Niska. Human trafficking Trafficking of human beings — sometimes called human trafficking or, in the case of sexual services, sex trafficking — is not the same as people smuggling. A smuggler will facilitate illegal entry into a country for a fee, and on arrival at their destination, the smuggled person is free; the trafficking victim is coerced in some way. Victims do not agree to be trafficked; they are tricked, lured by false promises, or forced into it. Traffickers use coercive tactics including deception, fraud, intimidation, isolation, physical threats and use of force, debt bondage or even force-feeding drugs to control their victims. While the majority of victims are women, and sometimes children, other victims include men, women and children forced or conned into manual or cheap labor. Due to the illegal nature of trafficking, the exact extent is unknown. A U.S. government report published in 2003 estimates that 800,000-900,000 people worldwide are trafficked across borders each year. This figure does not include those who are trafficked internally. Child trafficking According to a study by Alternatives to Combat Child Labour Through Education and Sustainable Services in the Middle East and North Africa Region (ACCESS-MENA) 30% of school children living in border villages of Yemen had been smuggled into Saudi Arabia. Child trafficking is commonly referenced as "transporting". Smuggled children were in danger of being sexually abused or even killed. Poverty is one of the reasons behind child trafficking and some children are smuggled with their parents' consent via a transporter. As many as 50% of those smuggled are children. In the Philippines, between 60,000 and 100,000 children are trafficked to work in the sex industry. Human trafficking and migration Each year, hundreds of thousands of migrants are moved illegally by highly organized international smuggling and trafficking groups, often in dangerous or inhumane conditions. This phenomenon has been growing in recent years as people of low income countries are