Byron White, Costello v. Immigration and Naturalization Service…
“ Neither bears upon the question of whether the alien's past conduct brings him within the present definition of the deportable alien.Costello is an alien now, and his criminal propensities remain the same even though the crimes for which he has been convicted were committed while he was a nominal citizen. Nor is his present undesirability diminished by the fact that his citizenship upon which he relies was obtained by fraud and at a time when the law, as it has since 1917, provided for deportation upon the commission of two crimes involving moral turpitude. ”
