Billionaire Sheldon Adelson pledged $25 million to birthright israel. The money will allow the organization to double the number of free trips to Israel that it offers Jewish youth this summer, bringing the total to 20,000. The gift is being made by the Adelson Family Charitable Foundation, founded recently by the majority owner of the Las Vegas Sands Corp., and his wife, Dr. Miriam Adelson. According to a birthright spokesman, the foundation anticipates making similar $25 million gifts for the next several years. In December, the Adelson foundation gave $5 million to birthright to pay for 2,000 free trips for Jews aged 18 to 26.