Cousin marriage is permitted in Jewish Law as it is permitted by almost all systems of law and was very common in most societies before the 20th century when people began to understand the dangers involved. The consanguineous ratio for Arabs in Israel is 34% (which is in line with Arab neighbors) which is extraordinary and dangerously high. British Pakistanis (who are about 55% consanguineous) are 13 times more likely to have children with genetic disorders than the general population - they account for just over 3% of all births but have just under a third of all British children with such illnesses. Indeed, British experts estimates that one in ten of all children born to first cousins either dies in infancy or goes on to develop serious disability as a result of a recessive genetic disorder.
Kerry: Pollard's parole not related to Iran deal (Reuters)
from the article: Study: Israeli Jews live four years longer than Israeli Arabs