The Secretary of State, the Secretary of Homeland Security, the Secretary of Health and Human Services, and the Attorney General shall provide specialized training to all Federal personnel, and upon request, state 1 and local personnel, who have substantive contact with unaccompanied alien children. Such personnel shall be trained to work with unaccompanied alien children, including identifying children who are victims of severe forms of trafficking in persons, and children for whom asylum or special immigrant relief may be appropriate, including children described in subsection (a)(2).