<Tr> <Td> U.S. Customs Service </Td> <Td> Treasury </Td> <Td> U.S. Customs and Border Protection U.S. Immigration and Customs Enforcement </Td> </Tr> <Tr> <Td> Immigration and Naturalization Service </Td> <Td> Justice </Td> <Td> U.S. Customs and Border Protection U.S. Immigration and Customs Enforcement U.S. Citizenship and Immigration Services </Td> </Tr> <Tr> <Td> Federal Protective Service </Td> <Td> General Services Administration </Td> <Td> National Protection and Programs Directorate </Td> </Tr> <Tr> <Td> Transportation Security Administration </Td> <Td> Transportation </Td> <Td> Transportation Security Administration </Td> </Tr>

What does the director of homeland security do