“I was really surprised when, 13 years later, they were still able to find me!” said Gabriel Sackett, a 31-year-old security manager at Ben Gurion International Airport in Tel Aviv, Israel. He had joined the Gift of Life Marrow Registry in September 2003 during a drive at Sh’or Yoshuv Institute in Lawrence, N.Y. “As soon as I had the opportunity to join the registry, I did it without hesitation. If it can save someone’s life, it must be done,” said Gabriel. What he had not counted on was that when the call came for him to donate peripheral blood stem…