How can you prove a lie without proving it was a lie?
One of the witnesses is Bonds's former business partner, who is going to testify that Bonds's capsize grew while they worked together. His former girlfriend also is going to testify against him. As I see it, the problem with all of this is the fact that each is a former who may well have an axe to grind, and I expect that the defense will highlight this fly in the ointment.
I just don't see how the government can prove beyond a reasonable doubt that Bonds lied to a federal agent by proving a circumstantial case that it is beyond a reasonable doubt that Bonds used steroids. The circumstantial evidence just doesn't seem to be enough. But that's just me.
The most compelling evidence that the government can offer, in my opinion, is the testimony of the federal agent to whom Bonds allegedly lied. But then you simply put Bonds on the stand to say that's not true. Then the government's case is a "he said he said" and I don't think that they can win that. However, Bench, as a lawyer, who do you think? I'm real curious.