How did the illegal-alien rapper @21savage tour abroad & then manage to be let back into the US? Why wasn't he flagged as illegal when he was arrested in 2014 (DHS's fingerprint-matching system was fully deployed by then)?

How did the illegal-alien rapper @21savage tour abroad & then manage to be let back into the US? Why wasn't he flagged as illegal when he was arrested in 2014 (DHS's fingerprint-matching system was fully deployed by then)? https://t.co/iJ6JPRJpVG

— Mark Krikorian (@MarkSKrikorian) February 4, 2019