NHS maternity services are failing women and babies through a reluctance to admit mistakes, racism and poor staff relationships, a government-ordered investigation revealed yesterday.An interim report published by Baroness Amos, leading the National Maternity and Neonatal Investigation, found deep-rooted issues across the NHS and a system that “is not working for women, babies and families, or for staff.”She said that “time and time again” families and staff see the same issues repeated and numerous reviews making recommendations.