On this National Missing Children’s Day, we remember every child who has gone missing and not yet come home—each one a cherished soul and a profound loss felt by families across our Nation.  Today, we renew our solemn obligation to fight for their safe return with every resource our great country has to offer. Under the previous administration, 4 years of radical open-border policies resulted in hundreds of thousands migrant children lost or placed with unvetted sponsors.  Many of them were unaccompanied minors who were trafficked across our border alone, frightened, and vulnerable and delivered into the hands of sex traffickers and human smugglers by my predecessor’s weak and dangerous policies.  This was a betrayal of the most innocent among us, a modern-day exploitation that scarred a generation of children who deserved protection and were met with unimaginable suffering and abuse.…