For the past two years, veteran public radio host Diane Rehm has been exploring the circumstances surrounding death, and the rights of the dying to determine how and when their life should end. Haunted by the painful and prolonged death of her mother, then later her husband, the former host of the "Diane Rehm Show" has become an advocate for medical aid in death. Wanting to learn the legal and ethical boundaries, she has spoke with doctors, palliative care specialists, clergy, legal experts, the