Aecio asks what Dilma [Rousseff] has to hide from investments in the Port of Cuba [Mariel] that her government does not disclose, it's secret
Neves is referring to last year's decision by Rousseff to officially "classify" documents related to Brazilian conglomerate Odebrecht's (taxpayer-funded) business dealings with the Castro regime until the year 2027.
Adding further concern is how the Port of Mariel was then specifically chosen (before completion) for the Cuban regime's arms smuggling operation to North Korea, in order to prevent detection and avoid any paper trail.
Neves also revealed some of the questionable preferential terms Rousseff gave Cuba's regime for these Brazilian "investments" -- see here.
Aécio pergunta o que Dilma tem a esconder dos investimentos no Porto de Cuba que o governo não divulga, é secreto.#VotoAecioPeloBR45IL
— Aécio Neves (@AecioNeves) October 25, 2014