Opinion | D.C.’s jail is finally getting an update. But not the one it needs.

For decades, detainee advocates have argued that the D.C. jail is unsafe, unsanitary and inhumane. Then, Rep. Marjorie Taylor Greene (Ga.) and some of her GOP colleagues visited individuals allegedly involved in the Jan. 6, 2021, insurrection, who were housed there. This obnoxious political stunt had a perhaps unintended side effect: Conservative interest in jail…