A crowd of 88,000 Jews gathered at MetLife Stadium on Saturday to celebrate the reading of the entire Talmud, a historic event that drew heavy police presence after the recent spate of anti-Semitic attacks in the metropolitan area: The Siyum HaShas event marks the end of the 7 1/2 years it takes to read the 2,711-page Babylonian Talmud, the source of ethics and laws for Orthodox Jews. The East Rutherford,...