Exactly... he stated that it is the requirement to disclose to the court such things as who paid for a document, immediately after stating his angst regarding how the dossier was used by the FBI... and called for a SC to investigate. So, the friendly spin on this is that he is concerned the DOJ may have known the dossier was bogus and failed to disclose that to the FISA court, and the likely scenario is that he went as far as he legally could without actually stating publicly that the dossier was used to justify the FISA warrant. Only other possibility is that the dossier was presented as evidence to an as yet unrevealed court unrelated to FISA... not even sure what that would be.