. >> and i'm livia. here's our top story for this week. >> the internet is a terrific tool, especially for schoolwork. but can you trust that the information you're finding is accurate? carina looks at how one popular but controversial website works. >> like most teens, roman comes home after school and heads straight for his computer. but unlike most teens, roman isn't checking out facebook or e-mail. his first stop online is wikipedia, the website where you can find information on just about anything. >> i believe i was about 13 or 14 years old when i first began editing wikipedia. >> that's right, roman is a contributor to wikipedia. and that's what's special about the website. it depends on volunteers to add or edit material. >> i first started out by editing a few articles randomly, making a few grammatical adjustments maybe a spelling change here or there. >> the word wikipedia is a blend of two other words. a "wiki" is a website where anyone can add and edit content, and "pedia" comes from "encycl

. >> and i'm livia. here's our top story for this week. >> as we all know, jupiter is the biggest planet in our solar system. but there's still a lot more to learn about this distant giant. that's what nasa's newest space mission is going to find out. harry tells us more. >> packed with the very latest scientific gear, juno launched in august 2011. >> it gets to jupiter in 2016, so it takes five years to get to jupiter. >> whoa! did he say five years? >> five years to get to jupiter. >> well, the distance we're talking about is over 366 million miles. that's equal to going around the earth almost 15,000 times. juno has a unique design. it looks like a pinwheel, but as scott explains, the shape has a purpose. >> we're going out really far from the sun. in fact, jupiter's five times as far away from the sun as the earth is, and so we get 25 times less sunlight than we get here on earth. so we needed to overcome that. we have big giant solar panels to do that. but we go deep close to jupiter, right into the

and both sides spoke about that in terms of the most pressing international issues they spoke about livia and it turns out they spent most of the time speaking about the situation in syria david cameron mentioned that he believes that that sanctions should go even further and president made made him . to doubt that he or you would read doesn't think what's happening in syria is right and something needs to be done but by no means can this turn in to another the be a righteous cause russia believes the resolution in syria should be tough but at the same time violence to address to both in the syrian conflict president assad and the opposition only then can such a resolution succeed should be tough but not automatically sanctions syria is already under the e.u. and us sanctions he doesn't need additional pressure so certainly no major breakthrough in british russian relations but a very positive atmosphere considering that a british official at that level hasn't been in moscow on a visit like this in so long a positive atmosphere lots of laughs in fact one of the last questions asked after

shortly after tripoli fell into rebel hands the national transitional council livia's new authority claimed it was moving here from benghazi but weeks have passed and there is still no sign of order being restored the city is functioning by itself and treading a fine line between freedom and anik a. river national. tripoli libya. the egyptian government's failed to tighten security and keep order in karo where an angry mob stormed and sacked to the israeli embassy on friday night three people died and more than one thousand were injured in clashes after a demonstration demanding faster political reforms turned against the embassy egyptian police were slow to intervene but eventually managed to disperse the crowd and israeli sentiment rose sharply last month after israeli forces responding to a cross border militant attack mistakenly killed five egyptians israeli prime minister says his country will stick to its peace treaty with egypt despite the embassy assault that led to its being flown home base journalist ahmed abdul fatah says done plenty to make enemies videotron people. there is a l

shortly after tripoli fell into rebel hands the national transitional council livia's new authority claimed it was moving here from benghazi it's weeks have passed and there is still no sign of order being restored the city is functioning by itself and trading fine line between freedom and allocate. right national team tripoli libya. greece will impose a new one of property tax to make up for the shortfall in its budget this comes off of the prime minister vowed to save his debt stricken country from bankruptcy in a key speech on the economy where more than twenty five thousand people joined together to protest against tough starting measures on saturday and we demonstrated through bottles and stones or police to disperse the crowd to protest and say they are fed up with cuts to pensions and salaries and increased taxes imposed to secure international risk you know all of europe has been struggling with the sovereign debt crisis honest and honest peter build thinks that the euro zone has too many fatal flaws to survive. it may indeed be getting if not too late and certainly very late in the

and both sides spoke about that in terms of the most pressing international issues they spoke about livia and it turns out they spend most of their time speaking about the situation in syria both pointed out that they still do have very different viewpoints on that but they do encourage each other to be direct and frank about what they think and try to use each other's ideas to move forward david cameron mentions that he believes that that sanctions should go even further and president medvedev pointed out that he is for you what president doesn't think what's happening in syria is right and something needs to be done but by no means can this turn in to another libya. let's just get russia believes a resolution syria should be tough but at the same time guns to address to both in the syrian conflict president assad and the opposition only day can such a resolution succeed it should be tough but not automatically sanctions syria is already on the e.u. and u.s. sanctions it doesn't need additional pressure. so certainly no major breakthrough in british russian relations but a very positive

unconfirmed their b n c has reportedly promised to give us a thirty five percent of crude oil producing livia's of the french in exchange for support that's quite full and parliament. well i mean you know this is supposed to be a sovereign country we shouldn't be in a situation where deals are being made in terms of the natural resources of that country if this was indeed. a movement for democracy a movement for popular power if this had anything to do with the arab spring that is taking that is there is developing throughout the region then we'd be talking about the libyans deciding for themselves what they do with the oil it's an absolute outrage this is happening and why this is a deal this brings the rest of nigerians place in a very this is a deal that's been struck my head here the m.t.c. is not an elected government by the why i haven't noticed there being any elections in libya the n.p.c. has been essentially appointed by the big powers around the world russia is now backing them as well and sixteen countries are coming to paris for for a conference about the future of libya why is this

shortly after tripoli fell into rebel hands the national transitional council livia's new authority claimed it was moving here from benghazi but weeks have passed and there is still no sign of its presence on the ground or of order being restored the city is functioning by itself and treading a fine line between freedom and anneke. river national r t tripoli libya. ahead a repeat scenario of libya was not unfolding in syria moscow refuses to take sides over damascus saying peace through bloodshed isn't the answer is calling on both the rebels and the regime to lay down arms and turn to dialogue we've got more on that in a few minutes also keeping face palestinians rallying for statehood ahead of the u.n. vote vow to stay peaceful in spite of possible israeli attacks saying that recognition rests on their image. the funerals been held in london for the man whose death triggered a wave of violent riots across the u.k. father of four mark duggan was shot dead during a police operation back in august but he's the reports. it is in mourning today as the funeral. takes place and you will remember

as many of you know there are hundreds of children who live in places like something crucible livia who wake up every day and spend their days begging, selling gum and cigarettes, begging and selling gum and cigarettes like this girl who spent her day shining shoes. i saw this in cambodia, where i was working with people who had lost limbs of the landmines and where i was working with kids, some of them young kids who lost limbs and landmines whose families lived on less than 1 dollar a day. kids who were survivors of polio, who when they were fitted with prosthetics literally when they were fitted with prosthetics literally had to learn how to walk again. and what i saw in all of the situation was how important was, how essential it was for people who were living through tragedy and facing difficulty to have a sense of purpose in their lives. and a sense that they were being called to be of service to something larger than themselves. the question though for me was, how i was going to live that in my own life. i had been doing this work, most of it, as a student and i've been spending