Regional Dialogues on the Changing Environment for the Physical and Mathematical Sciences -- Copyright -- Preface -- Summary -- BACKGROUND: THE CHANTILLY CONFERENCE -- Expectations for the Regional Dialogues -- HIGHLIGHTS OF THE BURLINGAME CONFERENCE -- Overview of the Conference -- Participants/Composition of the Group1 -- Themes and Issues -- HIGHLIGHTS OF THE VAIL CONFERENCE -- Overview of the Conference -- Participants/Composition of the Group -- Themes and Issues -- Next Steps -- CONCLUDING OBSERVATIONS -- ACKNOWLEDGMENTS -- Appendices -- CONFERENCE PARTICIPANTS -- CONFERENCE PARTICIPANTS.