9/11 was worse. Hiroshima/Nagasaki should not count as atrocities- because even if not 100% necessary to win the war- they helped cement America's military superiority and attract allies and helped build a military bloc with USA at it's center. read more
9/11 was the mass murder of civilians during peace that triggered at least 3 wars: Afghanistan; Iraq; Global war on terrors; The bombings of Hiroshima and Nagasaki were acts of war that ended the bloodiest war in human history the fastest and with the fewest casualties on both sides of any alternative available in 1945. read more