Whitaker v. District of Columbia Concealed Pistol Licensing Review Board

(1) Whether the government can render moot a fully briefed appeal challenging the denial of a license to carry a pistol by granting the license, though not confessing error, when the license must later be renewed under the same assertedly illegal standard; and (2) whether a regulation that disqualifies applicants for gun licenses who have exhibited an undefined "propensity for violence or instability" is unconstitutionally vague.