[applause] [applause] rebecca will present elie wiesel with his pin.e] [applause] >> earlier today all of our survivors, veterans, and rescuers received their pins from washington area students. inl the survivors with us the audience please stand to be recognized? [applause] [applause] [applae] thank you. please be seated. now all of the veterans please stand. [applause] [applause] [applause] [applause] thank you. please be seated. on behalf of all of us here today, we pledged to never forget and that we will carry your stories into the future. thank you. [applause] [applause] [applause] >> please welcome elie wiesel, founding chairman of the united states holocaust memorial museum. [applause] >> president clinton, my fellow survivors, and all of you who were here, in truth having witnessed the solidarity of people who went through the worst of human imagination we have heard voices that are appeals to hope and generosity in our lives. that is the message. it is important. we believe it. it is an indictment. a terrible indictment of leadership in those

if you could say something to that 16-year-old, elie wiesel what would it be?t boy, strangely enough one of the most glorious moments in my life and i got the remember i was there and i had to speak and actually i wanted to speak to that boy and say, look here i am with you. what have i done with your life and mine? my questions remain questions all the time. >> you can hear the full interview with professor wiesel includ his sense of humor survived what survived on cnn.com/soundwaves. cnn.com/soundwaves. look for it tomorrow online. -- captions by vitac -- www.vitac.com >>> you're in the cnn newsroom everyone. i'm don lemon. this evening we're live from boston. i'm standing here here is the heart of the city. people are out on historic boylston street. they're unified as people who are back in business after the bombings. now, at this time this woman is a main focus of the fbi investigation, the bomb suspect's mother. officials want to know how aware she was that her son may have been leaning toward extremism and violence. more details in just a minute here on

founding chairman and our guiding spirit, elie wiesel and our guest president, bill clinton. them shortly. looking out into this crowd, i feel inspired and hopeful. youngnspired by the many faces. ofe are descendants survivors or veterans. many are not. they are here not because of a family connection but because they recognize the importance of our mission for the future and their role in it. the museum's motto is "what you do matters." we know from the holocaust that it is the actions of young people who are the change agents in any society that will shape the future. some of my most powerful memories are breaking my three teenage children through the museum and being part of that transformative experience with them. like all kids, they like technology. they realized technological progress must never be confused with moral progress. here they confront profound truths about human nature from the awful to inspirational. here they are prepared along with millions of other young people for their moral responsibilities in an increasingly uncertain future. to guide the future of

bill clinton and elie wiesel spoke to the gathering. there were a thousand people in all at today's emotional remembrance, including 89-year-old donald mccarthy of warrick, rhode island, who landed on omaha beach with the 29th infantry and talked about the importance of today. >> the idea that it's so important to bloody remember what this is all about and why there was a wwii in the first place. and how it happened. and that's the whole story as far as i'm concerned. >> they marked this 20th anniversary of the museum in a big way today because of fears that so few of today's attendees would be able to attend the 25th, another five years from now. >>> we got to see nelson mandela today, but that's about it. in failing health at age 94 following three hospital stays in four months, the revered former south african president was visited by the current president zuma surrounded by friends, family, medical staff. mandela was unsmiling, was shown on south african tv in that same seated position. >>> retired supreme court justice sandra day o

you can watch videos from today's ceremony online, including speeches from president clinton and elie wiesel. find those on our youtube page. >> woodruff: now, our look at how social media affects and infects the world we live in. newshour political editor christina bellantoni is here with the daily download team. >> reporter: we learned last week that a tweet can send markets crashing in a matter of minutes. how can news outlets protect themselves from hack? and how difficult is it to stop something once it goes viral? we discuss the issue with it two journalists from the web site daily download. lauren ashburn and howie kurtz. thanks for being here. last tuesday we saw that the associated press sent out this tweet to 1.9 million followers. what exactly happened here? >> the tweet, as you can see here, says "breaing: two explosions in the white house and barack obama is injured." everybody went crazy online. it was retweeted 1,800 times to the associated press with almost two million followers. after that we saw a drop in standard & poor's and the stock market. >> $136 billion lost. most of

you can watch videos from today's ceremony online, including speeches from president clinton and elie wiesel. find those on our youtube page. >> for more now on the jason collins store i'm joined by lz granderson. specifically for the nonsports fans, why was this taken so long in prosports and why is it a big deal now? >> well, one of the reason it's taken so long in professional sports is because there's a sense in the lockerroom that a openly gay male player would not be safe. that his job would be in jeopardy and his health could be at risk especially if he is playing a collision sport or a team wouldn't sign him, cut him or waive him if he is playing football. the threat of your livelihood and health for many, many years was the reason why athletes were so hesitant to come out. as far as it being a big deal now it's the a big deal in the sense it's a first player but if you look at the arc of the lbgt movement not i'm not sure it's as big in other words the movement has progressed to this it's effecting a larger group of people than perhaps the symbolism of one player in the nba. >> brow

[applause] >> nobel peace prize winner elie wiesel spoke at the holocaust museum in washington d.c.. you can watch this entire event is c-span.org and here's a part of what he had to say. >> we believe that opening up the gates of our memories are bringing people closer together. it brings people to a realization of what is first a human being, a person an individual can do. i think of those who save lives. all these christians who save lives while risking their own. every one of them is a hero. [applause] i also remember i was so involved for this extraordinary group of people. they organized a group of liberators. we brought liberators from all over the world. and i spoke to them. i said you are now the first to have seen us. you were the first three men and women who have seen us inside. upr witnesses. i remember i was going from one to the other, members of the resistance in poland and hungary and everywhere. i said what gave you the courage to resist? gave you the courage to become a hero? we are hero's? one said look, if my neighbor was in danger how could i not offer him a pla