Open this photo in gallery: Judith Tzamir, a Holocaust survivor from Germany, speaks to a journalist in her family home in Kibbutz Mefalsim, southern Israel, on May 3.Maya Alleruzzo/The Associated Press When Hamas fighters invaded southern Israel on Oct. 7, the militant group that rules the Gaza Strip perpetrated the deadliest attack on Jews since the Holocaust. So this year’s Holocaust Remembrance Day, which begins on Sunday evening in Israel, carries a heavier weight than usual for many Jews around the world. For Judith Tzamir, a Holocaust survivor from Germany who moved to Israel in 1964, the horrors of Oct....