correspondent alfonso van marsh reports. >> reporter: children today are exposed to cell phones at a very early age. >> i got my cell phone at six. >> first one was eight. >> i was seven. >> reporter: researchers in britain want to know what effect all that talking and texting may have on a child's developing brain. >> in particular cognitive development, cognitive development and functioning essentially just means thinking, how we think, how we decide on things. >> reporter: the the children's's at this school in north london are part of the three-year study that aims to track cell phone habits of the 3,000 students. students taking part in the study will install an app on their cell phones that will measure how long they talk text and surf the internet. >> they have to actually think bit. >> reporter: researchers will put students through test like this game measuring attention and memory. >> capturing how fast the students can respond to the stim lie that they are seeing and how accurately they are responding. >> reporter: they are all interested in hearing what the researchers di

cbs news correspondent, alfonso van marsh has more. >> reporter: israeli troops moved in the the west bank village late monday night as news spread that searchers found bodies of three israeli teenagers missing for the last two weeks. bodies of the three, one with dual american citizenship, were found it var mid a field not far from where they were last seen. hitchhiking home from school. israel blamed hamas for their disappearance and launched a frantic search. 400 members were arrested in the crackdown. israeli prime minister benjamin netanyahu called a emergency cabinet meeting. the united states is urging both sides to exercise restraint. >> we certainly would continue to urge that, despite, in spite of obviously the tragedy and enormous pain on the ground. >> reporter: the prime suspect, two well known hamas operative is still have not been caught. alfonso van marsh for cbs-3 "eyewitness news". >>> general motors safety crisis continues to grow, auto maker announced it is recalling at least 7.6 million vehicles dating back to 1997 to, six faulty ignition switches that comes the s

alfonso van marsh for cbs-3 "eyewitness news". >>> tonight the a group linked to al qaeda is claiming responsibility for a deadly attack on a small town in kenya overnight. they are known as al shebob. they killed 48 people and set two hotels on fire. witnesses say they were targeting non-muslims and anyone who did not seek the some language. security forces regained control after hours after gunfire massachusetts mother gets the apology she wanted after a flied attendant refused to allow her daughter to use a rest room. jennifer was traveling with two girls on the flight from new york to boston. when their plane was delayed on the tarmac. her three-year old needed to use the rest room but the the two weren't allowed to leave their seats. the child wound up wetting her seat. devereaux is happen that i jet blue has done the right thing. >> she said i'm a mom too. i totally understand what you are going through. i'm so sorry this happened to you. i don't care about a voucher. that kind of stuff doesn't really matter to me. i did want an apology for my family because we really felt like

alfonso van marsh, for cbs-3 "eyewitness news". >>> stay with "eyewitness news" on television and one as we continue to bring you the very latest on the crisis in iraq. >>> nearly 50 men and women became u.s. citizens in philadelphia today. the the oath ceremony at national museum of american jewish history in center city was held to commemorate world refugee day. at the ceremony we spoke to an iraqi native happy to be an american citizen she shared with us her concerns, about her home land. >> it is very unfortunate. it should president be this way. we should all come, together and unite. >> during the the last decade, u.s. citizenship and immigration services have welcome more than 6 million naturalized citizens. >>> fire works on capitol hill as lawmakers confront the head of the irs. agency under scrutiny for targeting conservative groups. the irs commissioner john cokcannon tried to explain lost e-mails from lewis learner, the irs executive in the center of the probe. she's exercised her fifth amendment rights and refused to testify. learner's computer reportedly crashed in 2011

cbs news correspondent alfonso van marsh has more in london. >> reporter: afghan police say nato forcesave just finished a special operation in southern afghanistan when taliban militants attacked monday night. in the heat of the fighting, five american troops were killed. >> we do have reason to suspect that friendly fire was the cause here, specifically friendly fire from the air. >> reporter: the taliban has claimed responsibility for attacking the troops, this year, 36 nato soldiers have been killed in afghanistan, eight in june. the deaths come just weeks after president barack obama visited afghanistan and announced plans to remove all u.s. troops by 2016. >> america's war in afghanistan will come to a responsible end. >> reporter: insurgents have intensified attacks on afghan and foreign force's head of the country's presidential election run off this saturday. alfonso van marsh for cbs-3 "eyewitness news". >>> political storm over the trade of five taliban inmates of captured american solder bowe bergdahl is intensifying. members were angry they were not notified prior to the sh

cbs news correspondent alfonso van marsh has more on the visit. >> reporter: secretary of state johnkerry met with iraq's prime minister for about an hour and a half in baghdad. he warned nori al-maliki to share power with his political rivals before a militant uprising escalates in civil war. >> this is critical moment for iraq's future. it is a moment of decision for iraq's leaders and it the is a moment of great urgency. >> reporter: officialness washington have have suggested that al-maliki should step down, but the prime minister is showing no signs of leaving. sunni extremist vowing to topple iraq's shiite led government are capturing more areas of northern iraq, president obama says insurgents must be stopped. >> i think it is fair to say that their extreme etiology imposees a medium and long term threat. >> reporter: sunni militants want to set up a islamic state in the region. in the northern city of mosul they handed out qurans on the street. iraq says its troops need america's help with air strikes to crush the extremist. washington is sending military advisor but they won

alfonso van marsh for cbs-3 "eyewitness news". >>> the speaker of the the house john boehner is filing a law you suit against president obama complaining the president is misusing executive orders, to sidestep congress on issues like immigration and health care. >> the the the cons dogs makes it clear that the president's job is to faithful execute the office, and in my view, the president has not faithfully executed the laws. >> that lawsuit could test the constitutional checks and balances between the legislative and the executive branches. >>> still to come on cbs-3 "eyewitness news" at 5:00 thousands of people including many homeless are getting a free gourmet meal today and $300 cash. >>> hoist behind the generous offering and why is he doing it? that story coming up. >>> also how clean is your favorite spot on the jersey shore. well, a new you report has just been released, we are live with this years superstar beaches. >>> and on line shopping is more popular then ever but not everyone knows there is a way to get money back when you shop, three on your side's jim donovan takes a