The Kino Border Initiative reported:
Since MPP returns to Nogales began on January 2nd, CBP has already returned particularly vulnerable individuals, including 3 two-year-old children, 2 one-year-old babies and 3 families that are primarily Mam speaking (despite the fact that indigenous language speakers, especially of non-Mexican languages, shouldn’t be subject to MPP).
— “January 9 Update from KBI” (Nogales: Kino Border Initiative, January 9, 2020).