le to do everything but you can get close. it takes persistence. it takes understanding of where the information about you originates and how it gets put in to different searchable databases and on-line services. it takes some amount of knowledge, research and actual patience to remove your identity from various on-line services where it is possible to do. cnn could only find a single tweet referencing him. a tweet from a london court to notify the public about his court appearance. he was later found not guilty of theft charges. he graduated from the university of westminster, here in london with a degree in computer engineering. so he may be more adept at keeping a low internet profile
time lines. reporter: security another challenge. here special forces train for potential terrorist attacks on a bus line. really high crime and violence remain the biggest threats in rio. it is also not clear if the subway extension connecting venues will be done on time but rio officials are confident they will meet the targets and visitors will be won over by the city s natural beauty and charming residents. shaps shasta darlington cnn, rio de janeiro. will rio be ready? we will have to wait and see. thank you for joining us. i m george howell. stay with us. we will have more from moscow as mourners are set to march in honor of slain opposition activist boris nemtsov. the news continues next hour here on cnn u.s. and cnn international.
welcome back to cnn newsroom. i m george howell. we are 17 months away from the 2016 summer olympics but questions remain whether rj religion will be ready for the big event. there is the problem of violence and crime and the city s sewage system and transportation infrastructure. cnn s shasta darlington has the story. reporter: lush waterways with tropical birds. what could lurk here? we quickly find out as we catch a ride with this biologist. not all of the birds are so chirpy. over in baja there are a series of lagoons that back up to the park. you can see the garage and a terrible stench of open sewage. people staying nearby at the athlete s village could take notice. he says the problem isn t new. the city has grown a lot in the last 50 years and sewage infrastructure didn t grow with
translator: it is a shocking dangerous decision that targets the palestinian people and the palestinian resistance that is defending the dignity of palestine and the arab nation. it also goes against the rules as it relates to the israeli enemy as a friend and to hamas, the palestinian people and the palestinian resistance as enemy. this decision will never harm hamas, and its victories or the stand of its leaders, but it will directly contaminate the reputation of egypt. this does create a very dangerous situation. egypt has been the broker for peace between hamas and israel during their past thee wars. egypt is also a broker in interpalestinian politics. the question is who will pick up the mantle that all parties can agree on? for now, this ruling can be appeal. ian lee, cnn, cairo. u.s. and coalition forces launched 20 new air strikes against isis in both syria and
protest his treatment by authorities but he used a pseudonym keeping his true name off the interit net. while most of society is seemingly obsessed with sharing everything on social media, another wave of people like mohammad emwazi may leave it behind without a trace. samuel burke, cnn, london. a u.s. town of just 50 residents lost nearly 20% of its population in a killing spree that has investigators searching for answers. still ahead this hour we will take a look at the missouri mass shootings.