Scientists in exile.

Since 2001, the United Nations has designated 20 June as World Refugee Day. It seeks to raise awareness of refugees-currently estimated to be more than 114 million persons internally displaced, exiled, or on the move-and the often-harsh conditions they confront around the world. Among them are scientists, giving the scientific community a special responsibility to protect and support these colleagues. It is not just scientists and their families whose lives are disrupted, but science as an enterprise as well.