>> dubois: tonight, terror tribunal at guantanamo: five accused 9/11 conspirators try to obstruct their arraignment. jan crawford has the latest on the hearing in cuba. >> the time to answer for their crimes is here. >> dubois: game on: president obama officially launches his re-election campaign with rallies in two key states. norah o'donnell reports from the campaign trail. massive security in london ahead of the summer olympics. elizabeth palmer is watching the unprecedented peacetime build- up. and calling dr. shaq: randall pinkston watches graduation day for basketball legend shaquille o'neal. captioning sponsored by cbs this is the "cbs evening news." >> dubois: good evening. i'm maurice dubois.

it was a contentious start to a military trial many years in the making. five alleged al qaeda plotters managed to disrupt today's arraignment without ever saying a word. the hearing took place at the u.s. military base at guantanamo bay, cuba. our chief legal correspondent, jan crawford, is there. >> reporter: khalid sheik mohammed and the four other top 9/11 suspects were in the same courtroom four years ago, and they were defiant. there were repeated outbursts. they said they wanted to plead guilty. well, today, they followed a different strategy: silence. he sat at a table in the front of the courtroom, and again khalid sheikh mohammed, the confessed mastermind of september 11, seemed in charge. captured in pakistan in 2003, today, mohammed, known as k.s.m., is thinner, his bushy beard tinted red. once seated, he said nothing. when military judge james paul asked repeated questions about whether he wanted lawyers and who he wanted to represent him, k.s.m. looked away.

paul asked k.s.m. eight questions, and eight times the judge said, "the accused refuses to answer." the other four terror suspects accused of training hijackers or facilitating the 9/11 attacks also remained silent when judge paul questioned them. they kept their faces down, flipped through magazines or read the koran. one american lawyer for defendant walid bin-attash wore traditional muslim attire and even urged the female military prosecutors, dressed in uniform with knee-length skirts, to consider more appropriate attire so the suspects won't have fear of committing a sin under their faith. the obama administration planned to bring the five to new york for trial in a regular criminal court, but intense opposition forced the administration to scrap those plans and restart the military commissions at guantanamo. there was no indication today the defendants wanted to plead guilty, and their american, civilian and military lawyers offered a fierce defense with

talk of torture and mistreatment and complaints that they were prohibited from talking privately with their clients. as the lawyers tangled with the judge, k.s.m. looked on and smiled. also in the guantanamo courtroom were nine family members of 9/11 victims, including terra henwood butzbah, whose brother john was killed at work inside the world trade center. >> the time to answer for their crimes is here. the day of reckoning has come, and we have come to show that we're still here and that we will not stop until we seek justice. >> reporter: now, i was in the courtroom with nine other members of the media. khalid sheikh mohammed was sitting just 30 feet away, and during the breaks-- they took breaks so they could have prayers-- he turned around and talked to the other suspects. they whispered back and forth. they seemed relaxed, and they appeared to laugh. maurice? >> dubois: jan crawford, thank you very much. and khalid sheikh mohammed is the most notorious of the five on trial, but prosecutors say the other four also played key

roles in the 9/11 plot. john miller has more on the defendants and the charges. >> reporter: of the five defendants, ramzi bin al-shibh was captured first. that's him, blindfolded in the blue shirt, being arrested in karachi, pakistan, in september, 2002. military prosecutors say bin al- shibh was a key middle man from his post in hamburg, germany, where he lived with three hijacker pilots. osama bin laden had picked him to be a pilot, but then al-shibh failed four times to get a u.s. visa, leaving him to relay messages between al qaeda central and afghanistan and the hijackers. khalid sheikh mohammed was caught six months later, hiding out in an apartment in rawalpindi, pakistan. prosecutors say 9/11 was his idea, first pitching what he called "the planes plot" to bin laden in 1996. the charges also allege that mohammed trained the hijackers

how to slit passengers' throats by making them practice on sheep, goats and camels. walid bin-attash allegedly helped pick the hijackers and taught them hand-to-hand combat skills. prosecutors say, starting in 1999, attash flew throughout asia, carrying a razor knife to test airport security. ali abdul aziz ali is one of the two accused money men. prosecutors say ali, a nephew of khalid sheikh mohammed, wired $127,000 to the hijackers as they went to flight schools and lived incognito in the u.s. mustafa al-hawsawi, the other financier, based in dubai, allegedly bought clothes and plane tickets for the hijackers, who wired him $18,000 in unspent funds right before 9/11 for al qaeda's future use. and there was no shortage of plots to spend on. after 9/11, khalid sheikh mohammed went on to plot the bombings in bali, indonesia, the shoe-bomb plot against the u.s.,

as well as a plan to crash a plane into the tallest building in los angeles. maurice? >> dubois: john miller, thank you. president obama launched his reelection bid today, the day after the release of a disappointing jobs report. our chief white house correspondent norah o'donnell is with the president's campaign. norah, good evening to you. >> reporter: and good evening to you, maurice. and mindful that the economy is still the top issue for voters, the president kicked off his campaign in two battleground states, ohio and virginia, where the unemployment rate is actually below the national average. today, the president also attacked mitt romney as being a rubber stamp for republicans in congress. >> it is good to be back in ohio! ( cheers and applause ) >> reporter: today, the president set up this year's election as a make-or-break moment for the middle class, and he charged mitt romney would return to the policies that led to the economic downturn. >> we have to move forward to the future we imagined in 2008

where everyone gets a fair shot, and everyone does their fair share, and everyone plays by the same rules. that's the choice in this election, and that's why i'm running for a second term as president of the united states! ( cheers and applause ) >> reporter: in a sign of the new, sharper focus of a general election campaign, mr. obama repeatedly hammered his republican rival. >> i don't care how many ways you try to explain it, corporations aren't people; people are people. ( cheers and applause ) >> reporter: the president acknowledged he's not satisfied with the state of the economy, but he said he wants the wealthiest americans to pay more in taxes, a clear contrast with romney. >> he sincerely believes that if c.e.o.s and wealthy investors like him make money, the rest of us will automatically prosper, as well. ( audience boos ) >> reporter: he said, on issue after issue, romney would take the country backward, specifically mentioning abortion rights and coverage of

contraception. >> i want women to control their own health choices, just like i want my daughters to have the same opportunities as your sons. we are not turning back the clock. we are moving forward. ( cheers and applause ) >> reporter: the romney team has lately taken to mocking obama's campaign mantra of hope and change, branding this year as "hype and blame." the president today seemed to have heard that criticism. >> if people ask you what this campaign is about, you tell them it's still about hope. you tell them it's still about change. you tell them it's still about ordinary people who believe that in the face of great odds, we can make a difference in the life of this country. ( cheers and applause ) >> reporter: now, the romney campaign tonight did not specifically address some of the substance of the charges that the president made today, but they said these lofty campaign speeches don't hide the fact that there are millions of americans who can't pay their

bills and also find a job. >> dubois: norah o'donnell, thank you. and for more on the campaign, we turn to cbs news political director john dickerson. and, john, we couldn't help but notice the president added a new wrinkle today as he tries to define mitt romney. >> he tried to turn mitt romney's strength into a liability. governor romney has said that his 25 years in business make him uniquely qualified to handle the weak economy. the president is arguing that it makes him uniquely blind to the problems facing middle class families. he pointed to a woman at a romney campaign stop who told the governor about her economic troubles, and romney responded by talking about productivity. obama said that wasn't the problem; wages that don't increase are the problem. governor romney has said the president doesn't understand what's going on in the economy. it was the president's chance to return the charge. >> dubois: and john, what is it about ohio and virginia that has both candidates so heavily invested there? >> well, there are about 12 battleground states. ohio and virginia are at the top of the list. ohio has been a historical

bellwether state, and the polls show it absolutely tied between the two of them. in virginia, the president is ahead by about seven points in a recent "washington post" poll. that's largely due to the strength of his support among women. he hit that theme hard today, saying, on issues from abortion to contraception, mitt romney would reverse the freedoms women had won. the president even talked about his daughters, saying, "i want my daughters to have the same opportunities as your sons." the white house says the daughters are off limits, but the president brought them on stage, rhetorically at least. >> dubois: okay. political director john dickerson, thanks very much tonight. and today is cinco de mayo, not just a big day for celebrating mexican culture. as rick sallinger of our cbs station kcnc in denver tells us, it's also become an important day on the political calendar. ♪ >> reporter: yvette alba is exactly the sort of voter the republicans are looking for here at denver's annual cinco de mayo celebration, a hispanic who voted for barack obama four years ago but is now considering mitt romney.

>> he's got the business experience, for sure. in other issues, he seems to go back and fourth quite a bit depending on what the popular vote is at the time. so that kind of concerns me, whereas obama kind of stays solid. >> reporter: independent and hispanic voters turned out in large numbers for obama in 2008, but if romney can get just a fraction of those votes, it could help him to victory here. pollster floyd ciruli has been analyzing colorado politics for over 25 years. >> the romney campaign is clearly playing catch-up in colorado. they need to move at a high, visible level if they're going to try to make the statement that "we care about the hispanic community." >> it's not always about the party. >> reporter: state representative robert ramirez hopes romney's business background will help convince hispanic voters to move into the republican camp. >> the economy is important because right now the unemployment rate for the hispanic is about 5% to 6% higher than the average unemployment of everyone else, and that's terrible.

i mean, that says, "hey, we're not worried about you." and that's where obama has failed. >> reporter: while immigration is still a sensitive topic in the presidential race, most hispanic voters are more concerned about education and the economy. what is the key issue for you? >> unemployment. i've been unemployed for two years, and i think it's important that they get the economy going again. >> reporter: republicans are hoping that their message on the economy will convince hispanics like alba to swing their vote in november to romney. rick sallinger for cbs news, denver. >> dubois: coming up on tonight's "cbs evening news": no more nukes, what japan's reactor shutdown may mean for the united states. while a body in motion tends to stay in motion. staying active can actually ease arthritis symptoms. but if you have arthritis, staying active can be difficult. prescription celebrex can help relieve arthritis pain

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dissident, chen guangcheng, to leave the country with his family. chen has been invited to study at new york university. his departure would end a week-long diplomat standoff. japan today switched off its last active nuclear reactor. the plant, like the country's other reactors, was shut down for maintenance mandated after the fukushima disaster. none has yet returned to service. fukushima has shaken people's faith in the nuclear industry, and not just in japan, as lee cowan reports. >> reporter: its twin reactors have been part of southern california's skyline since 1970, an aging workhorse providing electricity to 1.4 million homes. but leaky pipes and other problems forced the san onofre nuclear power plant to be shut down. residents who live nearby say life has been just fine without it. >> we don't need nuclear power. we can get by without it. we don't have to have a catastrophe to learn the message of fukushima.

>> reporter: that meltdown made the japanese more than nervous, and today protesters again demanded that all the nation's 54 nuclear reactors remain dark forever. >> no nukes! >> reporter: in california, that same argument is taking place on a smaller scale. with repairs now complete, the san onofre nuclear power plant is set to go back online next month. but just like japan, some here are questioning whether it's really needed at all. >> when you balance safety against our need for so much energy, we could learn to make adjustments. >> reporter: verna rollinger is the mayor of nearby laguna beach and says they didn't notice a lack of power while the plant was closed. but the mayor of nearby san clemente says when the temperature rises, that's the real test. >> without it, i think we have the concern of having the

rolling blackouts that we've had in the past in summertime. >> reporter: energy experts recognize the dilemma. they say power has to come from somewhere. >> if that plant, the san onofre plant, is gone, we would have to replace it with a lot of transmission lines to bring power from someplace else. >> reporter: but a solution has to be found soon. its license with the nuclear regulatory commission expires in ten years. lee cowan, cbs news, los angeles. >> dubois: and just ahead, missiles on the rooftops as london prepares to protect the olympics. that story is next. olympics. that story i there are a million reasons why. but your erectile dysfunction that could be a question of blood flow. cialis for daily use helps you be ready anytime the moment's right. you can be more confident in your ability to be ready. and the same cialis is the only daily ed tablet approved to treat ed and symptoms of bph, like needing to go frequently or urgently. tell your doctor about all your medical conditions and medications, and ask if your heart is healthy enough for sexual activity.

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way to go, coach. ♪ >> dubois: in london, where the olympics begin in 83 days, tens of thousands of people were on hand for the opening of the stadium that will be the centerpiece of the summer games. the british government has been flaunting its security measures. elizabeth palmer has more. >> reporter: it was part rehearsal and part show of force, with hardware normally reserved for the battlefield on very public display. the message to terrorists: don't even think about attacking the london games. so how serious is the british military's commitment to olympic security? well, it's sailing this, the largest carrier in the british naval fleet, h.m.s. "ocean," to

a berth in london to serve as a base for the operation, an operation that will involve more than 30,000 soldiers and marines in the largest domestic mobilization since world war ii. britain's defense secretary is philip hammond. >> we can reassure visitors and londoners alike that if any threat does emerge, we have the assets in place to deal with it. >> the city of london. ( cheers and applause ) >> reporter: on july 6, seven years ago, the i.o.c. announced the winner of the bid to host the 2012 olympics. the very next day, suicide bombers killed 39 people on one bus and three subway lines. the lesson security forces learned then: shape their plan now, which include artillery in london's parks and short-range missiles on apartment buildings. residents aren't happy, as the only warning they got was a flyer in the mailbox. >> i don't think that's any way to tell people you're putting a missile base on their roof. >> reporter: especially as

government officials believe in spite of, or maybe because of all this, the main threat to the games is not terrorism but crime and public disorder. elizabeth palmer, cbs news, london. >> dubois: there will be a special treat in the night sky this evening: a moon that's not just full, but super. that rare lunar event will take place at 11:34 p.m. eastern time, 8:34 pacific, when the moon reaches the perigee of its elliptical orbit, its closest point to the earth, and it will appear bigger and brighter than a typical full moon. next, call him dr. o'neal after shaq scores at school.

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>> dubois: this was the day for fancy hats, mint juleps and what's been called the greatest two minutes in sports. tonight, at churchill downs in louisville, i'll have another came from behind to win the 138th running of the kentucky derby. in the stands, a record 165,307 fans. and finally tonighht, the man known simply as shaq. for 19 years, shaquille o'neal dominated the n.b.a. with his size and even bigger personality. well, now he has scored a doctorate and, as randall pinkston reports, it was a towering accomplishment. >> reporter: throughout his career, shaquille o'neal made breathtaking plays on the basketball court and won a room full of awards.

but o'neal calls this achievement the most important of his career: receiving his doctorate in education from florida's barry university, a private catholic school. >> it is my number one accomplishment because i didn't think i could do it, at first. >> reporter: it was typical shaq, blending the seriousness of pomp and circumstance with the joyful lift of a college official. in his career and his business ventures, shaq discovered that humor is useful. it was the subject of his dissertation. >> happy employees equal happy customers, happy customers equal happy shareholders. >> reporter: shaq praised his parents for being tough on him and pushing him to pursue education. his dad was too ill to attend the ceremony, but his mom, lucille, was there, beaming with pride. >> i'm honored to be able to call him doctor. he has earned that title. >> reporter: the n.b.a. doesn't keep statistics on how many players pursue advanced degrees, but dr. o'neal is

hoping that he becomes a role model for other players and for students everywhere. >> for the children that look up to me, for a guy that went to school and stopped and, you know, wants to continue his education, i want to be the one setting an example. >> reporter: o'neal earned his degrees-- a b.a., m.b.a., and now an e.d.d., over 20 years, most of it on the road, with a grueling, physical schedule. >> i'm doing pretty well for a 40-year-old has-been n.b.a. superstar. >> reporter: now he's holding another academic goal: a law degree. randall pinkston, cbs news, new york. >> dubois: and that's the "cbs evening news." later, on cbs, "48 hours mystery." i'm maurice dubois, cbs news in new york. good night. captioning sponsored by cbs captioned by media access group at wgbh access.wgbh.org

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