MADRID -- Declaring “victory” over Instagram after a controversial poster for his upcoming film was censored and then reinstated, Spanish director Pedro Almodóvar said Thursday that society must be alert to the power of algorithms in deciding what humans are permitted to see.“We have to be vigilant before the machines decide what we can and cannot do,” Almodóvar said after a poster for “Parallel Mothers” displaying a lactating nipple was removed by Instagram's algorithm due to its ban on nudity.