 Migrant kids gone missing after crossing the border continues to be a major issue for the government. Fox's William Lajanis has details. The term lost is relative. Many of these kids are 16 and 17. They don't want to be found. Yet in 2018, Donald Trump took a beating when his administration couldn't locate some 1,500 unaccompanied minors. That number may have reached 54,000 by the time Trump left office.