on this holocaust remembrance day, the president gave a powerful speech at the u.s. holocaust memorial museum right near in washington, d.c. speaking of government slaughter in syria which has now claimed more than 11,000 lives. jill dougherty is joining us with the latest details. at the museum, president obama referred to the unhappy record of the state department during the holocaust in world war ii. now he says preventing mass atrocities is no only a moral responsibility, it s a key security issue of the united states. reporter: barack obama shook hands with people who survived the death camp more than 60 years ago. he found new meaning in the phrase never again. never again is a challenge to nations. it s a bitter truth. too often the world has failed to prevent the killing of innocents on a massive scale and we are haunted by the lives we did not save. we are seeing the the killings in bosnia, the killings in darfur. they shock our conscience, but they are t