American University Professor Robert Pastor, a friend and colleague to many of us working on issues relating to North America, passed away last week after a long battle with cancer. Bob was very respected for his tremendous body of work on North America and Latin America; his most recent book, The North American Idea: A Vision of a Continental Future was simply the latest in a long and impressive list of publications. His advice and insights were always helpful and came from broad and deep experience. His colleagues, friends and former students were amazed at his tenacity and work ethic up until the very end of his life. For a full accounting of his interesting life—including his time as President Carter’s national security advisor on Latin American and Caribbean affairs—we highly recommend reading the Washington Post’s remarkable obituary. Rest in peace, Bob Pastor.