to detain alien families together throughout the pendency of criminal proceedings for improper entry or any removal or other immigration proceedings. 604. Prioritization of immigration pro­ceed­ings involving alien families The Attorney General shall, to the extent practicable, prioritize the adjudication of cases involving detained families. 605. General provisions (a) Nothing in this bill shall be construed to impair or otherwise affect— (1) the authority granted by law to an executive department or agency, or the head thereof