Eleven-month-old Charlie Gard was born with a rare genetic disorder. His parents' legal fight to continue his treatment has sparked a debate about who should decide what medical treatment he gets.Dr. Claire Fenton-Glynn, a legal scholar at the University of Cambridge who studies children's rights, talks to NPR's Kelly McEvers about the case. Copyright 2017 NPR. To see more, visit http://www.npr.org/.