Like its predecessor, this second outing laces its copious gross-out gags, pothead humor and female nudity with the smartest social satire this side of “The Daily Show.” As the title suggests, Guantanamo Bay is even more brazen about its politics. After Harold (John Cho) and Kumar (Kal Penn) are mistaken for terrorists on a flight to Amsterdam, they’re sent to Guantanamo Bay by a rabidly racist homeland security honcho (Rob Corddry in ultimate ugly American mode). The pair manages to flee before the torture begins, only to run into more emblems of American ignorance, from the Ku Klux Klan to George W. Bush.