"Historic" decision approves 3-parent DNA technique in U.K.

LONDON -- Britain's fertility regulator has approved controversial techniques allowing doctors to create babies using DNA from three people - what it called a "historic" decision to help prevent a small number of children from inheriting potentially fatal diseases from their mothers.The regulator's chair, Sally Chesire, on Thursday described it as a "life-changing" moment for families who might benefit from the treatment."Parents at very high risk of having a child with a life-threatening mitoch