>> foreign tourists fly out of tunisia after the gun attack on a beach

. >> but first talks in reaching a deal on iran's nuclear program are under way in vienna before a deadline on tuesday. they believe it is achievable but admits a lot of hard work needs to be done. they are helping holding face-to-face talks acknowledging that significant differences still remain. well the deal has been a long time in the making. the world powers with a tough inspection regime to verify that iran is not pursuing a nuclear weapon. they want strict limits on the number of centerfuge that is

could be used to enrich uranium and they want the removal of iran's existing stock pile of enough fuel. iran for its part wants to produce nuclear power for energy and medical purposes. it wants the sanctions lifted as soon as any deal is agreed. that would give access to oil that has had has been cut off and has had catastrophic effects on iran. any developments to report yet? >> certainly they've been talking. they have 90 minutes of talks between the u and iranians. they have got so match martine to work through. lots of team think that the deadline to be pushed forward.

key sticking points. but there are key sticking points that are missing so far from the deal. for example, where will inspectors be alloweding to inside iran. also the whole issue of sanctions and how would sanctions be lifted? particularly those global u.n. security council sanctions. i've been told that effectively here in vienna they will be negotiating, and some of the precise language of the u.n. security council resolution. some of that work has already been done in the capitals of the p5+1 part of the permanent members of the u.n. security council and germany. i'm told they want to get that language of that resolution finalized here because down the line after this deal, if it's been done, it's been done here, it then goes to congress, and then it goes to the u.n. in new york. i'm told they do not want negotiations reopened in

new york. they want to lock in the language now. >> james, it's particularly interesting, isn't it, that we've got john kerry already starting the talks with the iranian foreign minister, and we've seen france arrive. making some fairly grim assessments as to what we can expect from the talks saying that iran still has not met certain conditions. >> absolutely. well remember, in all of this process the french have been the hawks. they have been the strongest members of the p5+1, and have always had the toughest language and foreign minister coming here again with tough language. interesting, too, the language coming out of the iranian side because the iranian foreign minister told the iranian press we will get a deal here if the other side don't make excessive demands. when then he spoke after john kerry spoke, he was a little more diplomatic. >> we all look forward to

getting down to the final effort here to see whether or not a deal was possible. i think everybody would like to see an agreement but we have to work through some difficult issues. >> i agree. maybe not on the issues, but the fact that we have to work really hard to be able to make progress and move forward. we're determined to do everything we can in order to be able to make this important agreement. >> the french foreign minister here. i just saw the chief of the iaea arriving. other key players because they all need to be in place in this deal. the eu chief and the russian

foreign minister will probably be here monday. >> james bays, our diplomatic editor, who is keeping us up on those vital talks in vienna. now to other vital talks. european creditors to hold a snap referendum on a debt deal, well, they are meeting in brussels again amid fears that greece really could default on its debt and leave the eurozone. greece is under pressure to make the crucial debt repayment of $1.5 billion to the imf next tuesday, and one of the main sticking points for greece is that the issue of pensions. creditors want to increase the retirement age to 67 by the year 2022 as well as phase out a solidarity grant for pensioners. and the greek government is resisting the vta hike on household energy bills and

service industry. and it wants to raise the corporate tax rate for big businesses. but creditors are calling for a marginal increase. all right, we can go live to andrew simmons. it's all getting rather heated and quite ugly, the greek government aaccuse government, accusing the creditors of trying to humiliate the them, and now they've walked away from negotiations. >> that's right. greece has walked away from negotiations, and called for this referendum and also made it quite clear it's for the greek people to decide. the way it's been viewed by many is that the greek government is trying to play a smart move here in putting the eurozone under pressure. effectively making it quite

clear that it ought to be really supporting the greek government up until the point that it has this referendum next weekend. however, the mood off mood of finance ministers were saying category categorically that greece has effectively shut the door by throwing out the deal. the indications seem to be that there won't be an extension to the bailout. this is what the president of the euro group had to say. >> i'm negatively surprised by today's decisions by the greek government. they have apparently rejected the last proposals from the three institutions, and on that negative basis have proposed to have a ref run dumb with a negative advice of the greek people. that is a sad decision for greece because it has closed the

door for further talks where the door was still open in my mind. >> those remarks were quite diplomatic compared to other finance ministers who said quite simply that the irish finance minister said that greece had failed in its dealings, and therefore was putting it to the public. why should anyone stop them from doing that? the key question now is what the european central bank does if there is a default if it gets to tuesday the deadline for the end of the present bail out period, and the paying of $1.5 billion euros to the international monitor fund. if that does not take place that's technically a default. it could be that the imf may treat this as arrears and go on for a month without demanding the cash. now technically that could take place, but the ecb will still be under demand of pouring billions

of euros in greek banks. whether or not that could be sustained is open to question simply because it would be an against the ecps own rules if it was holding upage insolvent government. so we have a situation now where this term of uncharted waters is absolutely correct right now. we are in an unprecedented situation with serious dangers ahead not just for the greek government but for the eurozone as a whole. >> for now thank you very much. andrew simmons keeping us abreast of developments in brussels today. now the tunisian government has dismissed reports that a group linked to isil is behind friday's attack on a beach resort. the prime minister said that the gunmen was not previously known to police. more pictures have emerged of the attack near the resort town. moments of sheer terror for dozens of unsuspecting terror

tourists. >> everybody suddenly stood and was running run run run. and then also security. they were calling us to run run, go to your rooms. runaway. as i picked up only what i had nothing--everybody was running. they told us to go inside. go to the bar, go to your rooms. it was like in war. >> there was a rush of tourists to the nearby airport trying to get out of the country. thousands of them british visitors and they're being thrown home in especially charted jets. this was the scene the day after the attack on the imperial

hotel. you can see very few tourists remain but security has been stepped up on the beaches that are now pretty much deserted. the prime minister, as i mentioned earlier has ordered the closure of 80 mosques mosques he accuses of inciting violence. let's go to al jazeera there. the effects of the yesterday's murderous attack by a single man is still being felt in this resort town? >> absolutely. you can see the impact just a while ago inside the hotel of the lobby talking to some of the tourists who were present yesterday during the attack. >> we have seen buses leaving the area. we know that two thousand

tourists has been creating fear and skepticism. this is a country that has been trying to revive its tourist industry to most the economy. and they continue to be a peaceful tourist friendly destination while the attack yesterday well radio undermine that. >> the armed guards on the beach because of course there was this attack in march that not only frightened tourists away, but really forced the government to think its security approach particularly when it comes to this industry. >> absolutely. knowing that this is the peak season for tourism we're

talking about a country that has been grappling with attacks of groups in different parts of their country the attacker is affiliated with any group. isil or al-qaeda operating in tunisia. the attack yesterday was an isolated attack. was it an effort across the globe to target kuwait, paris and they're trying to find out exactly what happened, and when

the attacker was a lone wolf, or was he affiliated with an opponent with formidable capabilityies in tunisia. >> our correspondent in tunisia. thank you. still more to come here, including the beijing-based radio station hoping to ease station in the time of build up over the south china sea. >> i'm rob reynolds, and in is called the way back machine. an effort to preserve mass amounts of data that would otherwise be lost on the internet.

>> "inside story" takes you beyond the headlines, beyond the quick cuts, beyond the sound bites. we're giving you a deeper dive into the stories that are making our world what it is.

>> ray suarez hosts "inside story". only on al jazeera america. >> hello again. i'm martine dennis. you're with al jazeera, and these are our top stories. talks on reaching a deal on iran's nuclear program are on their way to vienna. both u.s. and iran believe the deal is achievable, but they admit that a lot of hard work still needs to be done. european creditors are angered by greece's decision to hold a snap referendum on a debt deal. they're holding talks in brussels amid fears that greece could default on its debt. and more amateur video is being released on friday's attack in tunisia. 39 people were killed, including the gunmen. the tunisian government is

di missing dismissing reports that els was linked to the attacks. battles are continuing south of the syrian town on the border with turkey. kurdish activists say that 180 people have been killed since isil stormed kobane. they say that isil took them as hostage using them as human shields. we have this up in turkey just over the border in co-ban kobane. >> the town behind me was an urban bottle ground for the past two days. they've managed to kill, injure the remaining isil fight whose are holed up in kobane over the past two days, really fierce fighting. isil fighters took control of

highrise buildings positioned snipers took civilians hostage. they snuck into the town disguised in kurdish uniforms, suicide car bomber detonated himself at the border crossing and then fighters began to randomly kill civilians. it was a deadly assault. according to the observatory for human rights as well as activist activists, more than 150 people were wounded we talked to survivors who told us how terrified they believe. isil was on a rampage. many believe that isil's intention was not to capture kobane but to send a message that we're still here. we have to remember that isil was forced out of the town five months ago. after four months of fierce fighting the kurds were supported by the u.s.-led coalition airstrikes.

isilisil sending a warning to the kurds, where they're battling on a number of fronts in northern syria that they didn't lose the fight. now mass funeral is underway for those killed in a suicide-bombing in kuwait. the police have arrested the owner of a car that took the bomber to a mosque, which was attacked during friday prayers. state media is also reporting the driver of that vehicle has fled. 27 worshipers were killed inside the mosque when the bomber detonated his explosives. a group linked to isil claimed responsibility. now to burundi where many will boycott the presidential elections. we now have reports from outside

of the capital. some villagers are afraid to oppose the government. >> this man was arrested shortly after he through grenades into a crowded area in burundi. when the police later released him, his neighbors carried out their own form of justice. >> i was in my house when i had people shouting. they shot him. >> opposition leaders say more of their supporters have been killed. this latest unrest started with the president announced he wants a third term in power which violates the constitution. after weeks of unrest, intimidation and crackdown on media organizations it's difficult for people to get independent news. >> i'm scared. six of my neighbors left because they heard rumors there would be

violence during election. >> it is not easy any more. after we protested people were killed by police. many were arrested. >> in some places homes have been abandoned. the man who lived here was 22 years old and he used to organize some of the protests in the village. when the police started looking for him he ran away. he may be hiding in the country side or even crossed the border. burundi's leader have launched campaigns and his supporters say that things are not that bad here. >> people who have runaway have come back because there is peace. they're going to vote for us during the election. >> many have disagreed saying they will boycott the election in next oh month's presidential election. they have not said if they have given up or if they have another

plan to prevent the president from hanging on to power. >> the philippines government is campaigning to stop china constructing artificial islands in the south china sea. diplomats in beijing insist that china is doing nothing wrong. and some filipinos who live in china are doing their best to encourage more friendly relations. >> broadcasting from beijing in filipino. this service from china radio international is 50 years old but it's facing challenging times. >> it aims to breach cultural divide between chinese and filipino people, and to enhance their friendship and mutual understanding. >> that might be the mission at cri's editorial meetings, but the divide between china and the

philippines has never seemed wider. china is shaking up the region by controversially building islands in disputed waters in the south china seas along vital afraid passages claimed among others by the philippines. >> it's been a number of years since they brought this to arbitration before an international tribunal. china refuses to participate in the process insisting they have undisputeable rights to the waters. filipino classes have been added to the curriculum at the beijing foreign studies university. a school known for creating diplomats. it aims to develop an entire course in philippine studies. >> to master the language of another country you can understand the culture, you can communicate with locals better. if there is dispute it will be

easier to stop the problem if you could speak their local language. >> when he's not at work at china radio he teaches his native filipino martial arts to students in beijing doing his bit, he says, for bilateral relations. >> politics is not so pleasant. so focusing on the more cultural aspect would be focusing on the more beautiful things of human life. if you only focus on the things that we enjoy more. the things that we could agree more then we can resolve the political differences. >> it's an optimistic perspective not shared by many. beyond these walls political relations continue to fray. attempts at diplomatic communications flounder as mistrust continues to grow, and out in the ocean china is still building islands. seemingly unconcerned with what

it's neighbors have to say. >> now the vast amount of information online is immeasurable. but as the web expands there is a danger that much of that knowledge may not be preserved. rob reynolds reports. >> the internet is throbbing with billions upon billions of web pages where scientific research and historical records sit along side diaries and chat videos. so is anyone keeping track of it all? well yes as is happens. inside a neo-classical building in san francisco that was originally a church, the hymns of the choir have been replaced by the humming of servers. this is part of the non-profit internet archive brain

brainchild of internet brewster kahle. >> robot crawlers will contact every web page and every website every two months taking a snapshot. it's starting to get big. >> how big? >> we've been archiving a billion page as week at this point. we're about 450 billion pages that are able through the way back machine. enormous. >> the online way back machine allows anyone to rummage through digital decades gone by. >> you type in a web address and then it shows one of the past versions of them. and you say i want to serve the web as it was in 2004 or in 1998. and go in and explore the ideas to try to keep the web alive even though the servers may be long gone. >> but unlike books in a library

or in inscriptions carved in stone, the internet is really just a bunch of electrons blipping around. that raises questions about digital durability. many specialists are deeply concerned that as hardware, software and computer coding languages change over time, vast amounts of knowledge may essentially be lost, locked in obsolete digital formats that can no longer be accessed. >> there are things that are scarcely 10-20 years old that are impossible to read because of obsolete software. now preservationists make sure that digits stay alive on the machines that keep spinning. >> the best way is to keep materials accessible and keep them loved. >> it will take money and effort by governments and corporations as well as visionaries by

brewster kahle to preserve the internet, cat videos and all. >> you can keep up-to-date with all the developing stories. we're particularly looking at the talks taking place in brussels. we're looking at athens where they're preparing for a referendum and then the crucial talks in vienna. www.aljazeera.com. the science of fighting a wild-fire. we're going to explore the intersection of hardware and humanity and we're doing it in a unique way. this is a show about science by scientists. tonight, techknow investiages dirty gold. see the color of this river? this is not normal. inside the illegal gold trade.