An LPR is required to present an I-551 (Green Card) for reentry into the U.S. If you are not a U.S. citizen or a U.S. LPR, you will need a passport and/or the appropriate documentation based on the status you are seeking in the U.S. for any type of cruise, closed loop or not.
The Picard Maneuver is a battle tactic invented by Starfleet Captain Jean-Luc Picard. In 2355, Picard was in command of the USS Stargazer when it was attacked by an unknown alien vessel, later determined to be of Ferengi origin.
PIC: Port Interface Card: PIC: Portable Intensive Care (system; medical equipment) PIC: Portfolio Investment Companies: PIC: Position Independent Code: PIC: Projecte Internet Catalunya (Catalan: Catalonia Internet Project) PIC: Protease Inhibitor Cocktail: PIC: Pyro Initiator Capacitor (US NASA) PIC: Pyro Initiator Controller (US NASA) PIC