Jewish leaders in the UK are warning that British Jewry may die out if more is not done to try to combat intermarriage. Studies show between 30% and 50% of young British Jews now marry outside the religion. Britain's Jewish population is in serious decline. The last census for Britain showed that 266,000 people said they were Jewish - 0.5% of the population. Dwindling numbers But 50 years ago figures show there were at least double that number, with about 500,000 British Jews. "Intermarriage and assimilation are the biggest threat to British Jewry right now," says Rabbi Yitchak Schochet, adviser...