Simplify the following text for a Grade 10 native English-speaking person.
Original: â In 2003 , Raymond testified before a subcommittee of the United States Congress on â The Ongoing Tragedy of International Slavery and Human Trafficking .
Simplified: â In 2003 , Raymond testified before a subcommittee of the U.S. Congress on â The Ongoing Tragedy of International Slavery and Human Trafficking .