The people responsible for planning and carrying out suicide bombings that deliberately target civilians are guilty of crimes against humanity and should be brought to justice, Human Rights Watch said in a new report today. The 170-page report is the first full-fledged examination of individual criminal responsibility for suicide bombings against civilians in Israel and the Israeli-occupied territories. The report, Erased in a Moment: Suicide Bombing Attacks against Israeli Civilians, also provides the most thorough study to date of the suicide bombing operations of Hamas, Islamic Jihad, the al-Aqsa Martyrs' Brigades and the Popular Front for the Liberation of Palestine (PFLP), the groups that have claimed responsibility for almost all recent suicide bombings. Since January 2001, 52 Palestinian suicide bombings have killed some 250 civilians and injured 2,000 more. Well-established principles of international law require that those in authority be held accountable when people under their control commit war crimes or crimes against humanity. Leaders who order such crimes, fail to take reasonable preventive action, or fail to punish the perpetrators are also responsible for such crimes.