Is Gates guilty of perjury?

Andy Worthington discusses the affidavit that was provided to habeas counsel from Gates (click on the title). Maybe this comes down to the word "encountered"? One thing that is sure is that we have not received exculpatory information for our clients (information that would tend to show they are not guilty). So far we have been left to our own investigations for proving our clients innocence but it is a legal obligation that the government give us the exculpatory information. Will the "justice departments" tactics change on January 20th? One can only hope.