text: Dissidents of this leader’s regime hijacked the Santa Maria cruise liner in Operation Dulcinea.
full_question: Dissidents of this leader’s regime hijacked the Santa Maria cruise liner in Operation Dulcinea. Many political prisoners died in the Tarrafal prison camp established by this leader’s regime. Humbert Delgado was assassinated by this leader’s PIDE secret police. For 10 points, name this Portugese leader who established the Estado Novo regime.
first_sentence: Dissidents of this leader’s regime hijacked the Santa Maria cruise liner in Operation Dulcinea.