(c)  Development of the Plan.  Consistent with applicable law, the Participants identified in subsection (b) of this section shall compile all information in the possession of the Federal Government relevant to the defeat of ISIS and its affiliates.  All executive departments and agencies shall, to the extent permitted by law, promptly comply with any request of the Participants to provide information in their possession or control pertaining to ISIS.  The Participants may seek further information relevant to the Plan from any appropriate source.