Since the program's implementation in the 1970s, it has reduced the ratio of children born with the hereditary blood disease from 1 out of every 158 births to almost zero. Dor Yeshorim, a program which seeks to reduce the incidence of Tay-Sachs disease among certain Jewish communities, is another screening program which has drawn comparisons with eugenics. In Israel, at the expense of the state, the general public is advised to carry out genetic tests to diagnose the disease before the birth of a baby. If an unborn baby is diagnosed with Tay-Sachs the pregnancy may be terminated, subject to consent. Most other Ashkenazi Jewish communities also run screening programmes due to the higher incidence of the disease. In some Jewish communities, the ancient custom of matchmaking (shidduch) is still practised, and in order to attempt to prevent the tragedy of infant death which always results from being homozygous for Tay-Sachs, associations such as the strongly observant Dor Yeshorim (which was founded by a rabbi who lost four children to the condition in order to prevent others suffering the same tragedy) test young couples to check whether they carry a risk of passing on this disease or certain other fatal conditions. If both the young man and young woman are Tay-Sachs carriers, it is common for the match to be…