work. mexico will pay for it. it's not a question of if, it's a question of when we have a debt crisis. >> we are hopeful that the violence will cease, there's reason to be skeptical. >> immigration, the economy, security and more. we'll separate the policies from the mud slipping in the debate. >> two days until the democrats vote. bernie sanders is campaigning,

but is not giving up on the state. >> history would judge us harshly if it did not do our part in trying to end diplomacy. >> president obama on a solution in syria, and the campaign against i.s.i.l. a series of shootings in kansas left four dead and at least 14 others injured. most of the shooting took place at excel industries in heston, about 35 miles north of wichita. the company makes lawn mowers and employs 500. there were about 150 inside the plant at the time. >> there was a question about what kind of weapon this was. a long gun, something like an assault rifle, a 223 round. that was used. >> do you believe he was an

employee of excel. >> he was an employee of excel. >> reporter: the gun mun shot one person inside the xel's parking lot before heading into the building. all four fatality curd in the plant the countdown is on four super-tuesday. the last debate before voters in a dozen states go to the polls. this was more raucous than usual. michael shure is in houston. the gloves came off. and the other candidates went after trump tonight. >> they sure did. hard to imagine something more raucous from what has been seen. marco rubio came to the debate. clearing knowing there was a poll, saying he was behind. they can ill afford to have that happen. he came at donald trump in a way that we have not seen marco

rubio do. >> i hired tens of thousands. you hired no one. you had nothing but problems with credit cards et cetera. >> let me finish. this is... >> you have not hired one person. >> he hired workers from poland and paid $1 million in a judgment. >> that is wrong. >> people can look it up. i am sure they are googling it now. >> they'll see 1 million for hiring illegal workers on a contract. he did it. >> that happened. >> i have hired tens of thousands of people over my life town. >> many from other countries. >> just be quiet. let me talk. >> reporter: you could have clipped any portion of this debate and seen exactly that. that was trump answering allegations of hiring polish workers that were undocumented years ago. it went on and on. when they got to issues of substance, it was ted cruz that

wanted to lay into donald trump. they talked about the nomination to the supreme court and the passing, but ted cruz said donald trump cannot be trusted on this. he is not the kind of republican that they need to make the nomination. here is ted cruz. >> it's interesting now that donald promises can point justices. >> this is a man that gave money to jimmy carter, chuck schumer, harry reid. no one that supports those that fight for judicial activists that care about having principle constitutionalists on the court. >> that's what you heard from cruz, challenging bona fides of donald trump. he didn't come at trump as hard as many expected. he was constant. it was a barrage, it was not like marco rubio, who found himself a little tonight. >> it was something to watch.

do you think they were effective. will this change the numbers at all? >> it's hard to say. anybody that looks at this stuff and does it professionally or sitting at home in the living room watching the debates. i think that everything is unpredictable about this. in an ordinary year, donald trump had a less than good night. people came after. maybe marco rubio had a better night. whether it affects anything, it will not move people away from donald trump, but may give people pause when deciding whether to vote donald trump over cruz. there were substantive answers, but it's not what the audience was looking for or creating throughout the campaign season. >> it was an interesting night. michael shure in houston joining us from philadelphia. former white house aid to george h.w. bush who was at the debate

and is senior vice president of elected face. good to see you, joe. marco rubio and cruz had been going after each other before tonight. tonight it was certainly a focus on attacking trump. they were out to show the emperor has no clothes, trying to get trump to, you know, actually put some meat behind his policies. how effective do you think they were? >> well, i think they both were articulate. worked hard to make their points. they may have thrown strong punches. i didn't see a knockout. to dethrone the champ, you have to knock him out. i didn't see it happening. he played - that is he, donald trump, played to his audience, which doesn't like politicians, they like him. saying he knows politicians, and you can't trust any of them, that's why he's running. he kind of deflected a lot of

blows with good counterpunches. no doubt about it. he called ted cruz a liar. and - i am sure he'll lie to you again and again in the next few days. didn't rubio rattle trump, getting trump to representatives himself at one -- repeat himself sort of saying he was a choke artist tonight? >> well he certainly got donald trump's attention and had effective blows. rubio and cruz are smart people. they were not elected to the u.s. senate by not being at the top of their game. at the end of the day the question is whether or not they were able to change the hearts and minds of voters in respective states. cruz has the advantage of being ahead. >> i was looking at the

prediction markets, rubio's chances seemed to improve. if the debate does not prove effective. is there a chance anything will? >> probably not. we don't have a lot of time here. candidates don't have a lot of time to make their case and move the chains as far as they need to move them. if trump continues to win primaries, he'll amass delegates, and the other candidates will get to the point they can't win. marco rubio cannot afford to lose his state of florida, he has to work hard. ted cruz can't afford to lose texas, they have to put some wins on the board for super-tuesday. the rents polls, florida, virginia, michigan, shows trump with 40% of the vote. he's ahead by smaller margins. most polls show him behind cruz, others show a dead heat.

the question about trump, or some argued, is that he had a ceiling, he couldn't get beyond 30% of the republican vote. he seems to be proving that that is not the case. >> he does. he's defied the odds. people didn't think he would be a serious candidate. i realized by early fall, september, that he would be a serious candidate, someone to be reckoned with. he had demonstrated he had staying power, he won the caucuses. i think he'll be a serious force, and is likely to do well on super-tuesday. don't discount ted cruz. he has a lot of money and organizations. i don't expect him to be a nonentity, he has to win primaries to say he needs to stay in the race. >> good to have you with us. thanks. >> turning now to the democrats, they have a primary on saturday

in south carolina. al jazeera's john terrett reports from north charleston. >> good evening from north charleston. and it is a measure of the importance with which the clinton campaign holds the state of south carolina. this evening they organized a town hall. there were hundreds asking the secretary questions when really she didn't need to do that, because she is far ahead in the polls. she did not want to get her fingers burnt. she's been burnt in the state before. unlike bernie sanders, who is away campaigning in ohio and michigan, she is campaigning on until the primary on saturday. however, mrs. clinton had a rough 24 hours. take a look at this. >> in politics, protests are common. this black lives matter protest you are unfurled his sign and held it up as hillary clinton spoke to a crowd in charleston,

south carolina. >> okay, we'll talk of it. >> do you apologise to black people... >> reporter: the sign referred to statements clinton made about at-risk youths in 1996. >> they are often the kind of kids called superpredators, no conscious, no entity, we can talk about how they ended that way, but we have to bring them to heel first. >> it's not the first time hillary clinton engourneded "black lives matter" -- encountered "black lives matter." >> yes, yes do. i'll talk about that. >> the standoff lasted 15 minutes before they were escorted out of the building. the secret service did the same with this protestor, and clinton resumed her speech without referring to the protest again. a disruption is not likely to slow victims, where polls suggest he is expected to win,

and win big. we have waged a vigorous campaign, picked up support and we have closed the gap very, very significantly bernie sanders denies abandoning the state. he has moved on. he'll return on friday. taking the message of inequality to ohio, and talking to residents of flint michigan about the water poisoning crisis on thursday. bernie sanders makes his way across the country, clinton is not budge of course, planning events up until voting day. a decision that may be influenced by history. black voters handed president obama the state and he won the nomination. clinton may be determined that history doesn't repeat itself this time. >> in an interview with "the washington post." clinton apologised for those wards saying i shouldn't have used those words and i wouldn't

use them again today. >> john terrett in north charleston president obama says he'll do all he can do make sure the cessation in syria holds. >> none of us are under illusion. we are aware of the pitfalls, there's plenty of reason forrefor skepticism. people judge us if we do not do our part in trying to end this with diplomacy. if implemented, the cessation could reduce the violence and get food and aid to syrians that are suffering and need it. >> the president spoke after meeting with the national security team at the state departme department. they discussed major issues at the campaign. >> the fight against i.s.i.l. will be difficult. we'll draw on all elements of the national power. military, intelligence,

diplomacy, homeland security, law enforcement and the strength of our communities, i'm confident we will prevail. we are in a better position now than we were last month and a better position last month than three months ago the president spoke hours after the top defense official testified before congress. they told lawmakers that russia and china are the biggest threats. jamie mcintyre reports from the pentagon. >> reporter: in his testimony before a house sub committee, defense secretary a ard lifted the -- ash carter listed five challengers. calling russia and china a stressing competitor. >> we saw it last week in the south china sea and crimea and syria. in some cases they are developing weapons and ways of war that achieve objectives

rapidly. >> russia have been supporting military muscle. china is the longer term threat. >> the commander of u.s. forces made clear in testimony before a senate committee. china is militarizing the south china sea. >> china has been developing reefs, deploying missiles and hardware to manmade and natural islands in in what admiral harris says is an effort to exert control and deny access in the united states. >> when they put their vast missile systems on the parasells, and build three runways. when te do all of that, they are

changing the operational landscape in the south china sea. >> reporter: carter told congress the u.s. is spending millions on weapons counter-china and russia. he listed crows missiles on a submarine, to a new generation of long-range bombers, aexotic swarming drones made on a 3d printer. unless spending is impressed, it's increased. >> there's no doubt in my mind we have a competitive edge over china. were we no to maintain an investment profile as outlined. we'd lose the competitive edge over time and find ourselves unable to advance interest in the pacific. apple says the fbi wants a

government operating system to access all iphones. next, the company returns to court in its fight over a locked phone belonging to one of san bernardino's attackers. and a a

locked iowa phone. but as jacob ward reports, apple says what the federal bureau of investigation really wants is a back door operating system. so it can easily access other iphone users information. >> in a motion filed a day ahead of the deadline. apple is asking a magistrate to reverse her order, acquiring apple to hack into a locked iphone. apple said it asked the government to build something new, a government os. and a forensic facility used to unlock phones in other cases.

apple executives told the reporters that the demand violates the company's right, compelling a third party to work for the government. fbi director james comey said that this is just about a single phone. nonetheless he told a house panel on thursday that this cannot help becoming a larger issue. >> we have two roles, one is in the cases, we must do a competent investigation following the murder of 14 people. we will. we'll use whatever tools are available. in the large erconversation our role is to make sure folks understand the costs associated with moving to a world of universal strong encryption. the microsoft legal officer told the house committee that the government has gone too far. >> we do not believe courts should seek to resolve issues of 21st century technology with law that was written in the era of the adding machine.

we need 21st century laws that address 21st century technology issues, and we need these laws to be written by congress. >> everyone seems to agree this is new territory, asked what precedent apple drew on, executives said we are not aware of any precedent for this at haul. no company has been enscripted to build something that never exists and apple argued it shouldn't have to be the first. president obama can cross one name off his list of potential supreme court nominees. brian sandival issued a statement saying he's not interested in the job. several reports yesterday was that the white house were considering him. the former suj said he was grateful to be mentioned as a nominee, the white house was asked if it could discourage people going through the

process. >> the kinds of people interested in a job like this and serving on the supreme court in a life-time appointment - they understand that this is a rigorous process and what that entails. i think it certainly is understandable that most people wouldn't want to go through it the president will meet with senate republicans last week. g.o.p. world said again that they would not hold hearings on any nominee put forth by the obama administration. >> the university of missouri fired a professor seen trying to intimidate a communicate. melissa clique was caught berating a student journalist last fall at the height of demonstrations over the demonstrations of african-americans at the school hackers, are going after hollywood. how the entertainment industry is trying to keep shows, movies and raw data falling into the wrong hands. >> the world's top surfers risk

hollywood is doing to protect themselves from hackers. >> reporter: there is edward snowden, and there is hollywood director oliver stone. he's making a film about edward snowden. this is ralph. the man oliver stone hired to keep his film about edward snowden away from prying eyes. >> the industry doesn't know what it's doing. >> reporter: ralph is a hacker turned hacker detector, a new breed called digital body guards, helping hollywood make sense of a world where it's more than film fans watching closely. >> they have an idea of the film is in the cannes, like a physical thing. it's not. from the moment that you are captioning this film, it's a file. it's duplicated many times. it didn't happen with a physical piece of film. >> hacking is big business. ask sony about that.

2014, cyber criminals breaching its system. stealing ter bites of data, costing the firm millions. >> five out of every six launch victims fell victim to cyber attack. at one point the numbers were up. hollywood is a major target. in previous years the studios could control who saw what and when. everything was on film, it was linear. nowadays so many are involved in the process, and they are accessing network and files using their own phones and tablets. and their own laptops. you see how keeping the prying eyes out is almost impossible. >> philip lieberman is one of a top cyber crime experts. this is a man who knows where the weak points are. try aiming for the stars. >> you have talent.

it might set the password to the dog's name and do an interview holding the dog, talking about the dog's name. and someone can pretty much figure out how to get things off the system. >> for this digital body guard it's about damage limitation. >> there's no such thing as 100% security. it's a matter of identifying a threat early enough so it doesn't have a huge impact. >> the hackers are in hollywood. metaphorically at least. there may be no happy ending in sight here finally, an unbelievable site in hawaii. on the famous north shore dozens of surfers got the chance to surf waves more than 40 feet tall. waves this size are rare. surfers have been waiting six years for the conditions to be right. tens of thousands watched as the surfingers risked their lives

for the perfect wave and the title of big wave surfer. i'm antonio mora. thank you for joining us, for the latest news head over to aljazeera.com. ray suarez is up next with