Jose Padilla insists that he's sane , despite three and a half years of abuse, interrogation and isolation at the hands of his government, and at least one doctor seems to side with him:

He is a bit paranoid and believes the government is persecuting him, "but this does not appear to be delusional," wrote one of doctors who examined the alleged al Qaeda operative in a Miami prison cell at his lawyers' request.

In other words, just because he's paranoid doesn't mean they're not out to get him.