The Corporation
         https://www.youtube.com/watch?v=Zx0f_8FKMrY


Da Servidão Moderna
          https://www.youtube.com/watch?v=xAVYFYMFAag

Ouro Azul
         https://www.youtube.com/watch?v=51rgm6jXhoQ

A Era da Estupidez
          https://www.youtube.com/watch?v=_d4YDLK0jP0

A Educação Proibida
           https://www.youtube.com/watch?v=-t60Gc00Bt8

Neil deGrasse Tyson (Astrofísico)
         https://www.youtube.com/watch?v=fZKgDtw9WkA
        
 https://www.youtube.com/watch?v=zbsTxSMoDms