al jazeera katmandu. >> that is your sport. back to lauren in london. >> thank you very much, indeed. in brazil two things come to mind football and carnival. [music] >> the celebrations are well under way in rio de janeiro. when king momo was handed keys to the city. it would hold five days of non-stop partying. the party will be held under tight security with 15,000 military police on under. 6,000 more than last year. >>> that's it for this news hour. we'll have a full update of news for you in just a couple of minutes. bye for now. >> monday on techknow. what if there was a miracle >> grace's stem cells are in this box >> that could save the life of your child >> we're gonna to do whatever we can >> would you give it a try? >> cell therapy is going to be the next big advance in medicine >> tech know, every monday go where science meets humanity. >> this is some of the best driving i've every done, even though i can't see. >> tech know. >> we're here in the vortex. >> monday, 5:30 eastern. only on al jazeera america. >> the u

other girls ran in katmandu and showed promise. they need further training. >> trail running is not a national sport here. most women might run and even win as an event like the marathon but don't get a chance to continue. >> this year, then, i think the international athletics federation will recognize trail running as an official sport and then the nepal government and their supporting departments might be able to introduce trail races into their national program of running so if that happens, then a lot of problems will be solved. >> for those like mira, without others raising money for her there is little chance that she can continue running. al jazeera katmandu. >> looks like too much hard work for me. thank you. thank you very much. >> now, president obama is expected in california for a summit on cyber security. he'll meet industry experts and talk about how to combat the various threats. taking on the hackers though is a rather complicated business. we have a report from baltimore. people trying to catch them could be prose