VOICED: Proceso secreto contra Assange

The transcript discusses the suspicion of a secret US process against Julian Assange, founder of Wikileaks. Baltasar Garzón, Assange's lawyer, is convinced of this secret process and plans to request clarification from US authorities. Assange, currently in the Ecuadorian Embassy in London, is willing to go to Sweden to address allegations of sexual assault, provided there are guarantees against US extradition. Garzón's belief in the secret process is supported by statements from authorities and witnesses in the case against Bradley Manning, who allegedly leaked classified information to Wikileaks.

What justification did Garzón provide for believing in a secret process against Assange?

What is the relationship between Bradley Manning and the Wikileaks case as mentioned in the text?