What can you say about newborn screening? i need your different reactions.. please help me?

Newborn screening is the process of testing newborn babies for treatable genetic, endocrinologic, metabolic and hematologic diseases. Robert Guthrie is given much of the credit for pioneering the earliest screening for phenylketonuria in the late 1960s using blood samples on filter paper obtained by pricking a newborn baby's heel on the second day of life to get a few drops of blood. In the United States and Canada, there were few federally sponsored government health programs in the 1960s and each state and Canadian province devised its own programs. Congenital hypothyroidism was the second disease widely added in the 1970s. The development of tandem m spectrometry screening by Edwin Naylor and others in the early 1990s led to a large expansion of potentially detectable congenital metabolic diseases that affect blood levels of organic acids. Additional tests have been added to many screening programs over the last two decades but screening programs vary from state to state and have become a subject of political controversy.