CNN 2012-03-01

 Today,we are talking about political primaries，a matriculation milestone 1 and a musical mentor 2.We are beginning in the state of Ohio.

Residents and officials in the city of Chardon are trying to make sense of a shooting are a high school there.One student was killed in the attack, four others were wounded.According to reports,the suspected gunman is also a student at the school.He was arrested yesterday.As students ran from the shooting,some of them use their cellphones to call police,or text their parents to let them know they were OK.A lot of schools practise what to do in these types of situations.They run drills for shootings,or natural disasters and one student at Chardon High,said he thinks what happened yesterday, could have been even worse if it wasn't for that preparation.
 
 
I think,that's what really helped keep it at a minimum of what it was,as bad as it was already.I think it could have been a lot worse, if we didn't do the drills,that we, that they had us to do.
 
 
Jumping now to the presidential campaign trail.It's been a few weeks since the last Republic contest but two states are taking over the political spotlight 3 today and those two states are Arizona and Michigan.Voters are heading to the polls there,casting their ballots 4 for Republican presidential candidates,Former Massachusetts Governor Mitt 5 Romney,former Senator Rick Santorum,former House Speaker Newt Gingrich and U.S. Representative Ron Paul.They are trying to win delegates in these primaries and caucus 6.Win enough?And you get the party's nomination 7 for president.There are fifty-nine delegates up for grabs today in Arizona and Michigan.
 
 
One issue comes up a lot during presidential campaign is education.According to a new report from US Census 8 Bureau,the country just marked a educational milestone has to do with how many Americans have a college degree.In March of last year,30% of adults,who are at least 25 years old,had a degree.Back in 1998,it was less than 25%.The director of the Census Bureau called this "an important milestone",saying the more education people have,the more likely they are to have a job and earn more money.
According to another Census report,workers with a bachelor's degree earn around 2000 dollars more on average than workers with high school diploma.
 
 
Today's Shout Out goes out to Ms. McElroy's social studies classes at Hilton Head Christian 9 Academy in Hilton Head,South Carolina.
 
 
Which of these places divided by the 38th parallel?
Is this Bering Strait,Korean Peninsula,Aleutian Islands or Marianas
Trench 10
?
You've got three seconds.Go.The parallel at 38 degree north latitude 11 divides north and south Korea.That's your answer and that's your Shout Out.
 
 
When those countries fought against each other in the Korean War,the United States was on the side of the south and the United States are South Korea are still alliances.They are both the target of harsh words from North Korea right now.That is because of military drills,like the one you see right here.The US and South Korea are running joint 12 operations right now.They are working together but North Korea says the drills are designed to provoke them and officials from the North say, they are ready to fight a war against South Korea and the US.North Korea's relationships with
other countries have been uncertain since long-time leader Kim Jong-il died in December.
 
 
But part of tention surrounding North Korea has to do with its nuclear program.Similar situations in Iran,you've heard us talk about sanctions,penalties,put on Iran by the US and the United Nations.The goal of those sanctions was to get Iran to stop its nuclear activities.Matthew Chance has more on the tension between Iran and international community.
 
 
What Iran says very clearly that it is not building a nuclear bomb.It says that it's never done any research into building a nuclear bombing.It says that all of its nuclear activities are directed towards purely 13 peaceful purposes.
 
 
The trouble is,that it's, it's not many people in the international communities believe Iran.They do believe there's evidence to suggest that in the past,they may have conducted some research which would be relevant to making nuclear bomb.
 
 
What we know is that it certainly doesn't have a nuclear weapon.
 
 
I mean that's one thing to make absolutely clear.But it does have is the ability to enrich uranium.Uranium is the substance which is needed to fuel nuclear reactors 14 and if you enrich even more,it's the substance that you need to create nuclear bomb.Iran has been enriching this uranium for years now as has every right to do.Because it's, say,a member of the Nuclear Non-proliferation Treaty.It's allowed under that treaty to enrich uranium but the trouble is,in the past it's not disclosed some of its activities to the international community.And why there's such a lack of trust with Iran at the moment.
 
 
What the IAEA is the UN's nuclear watchdog agency,it's the independent body,which has,you know a whole range of nations,that are members including Iran,that inspects nuclear facilities not just in Iran but allover the world.There are a lot of questions that the IAEA has that Iran has not answered.For instance,it wants access the UN does to search suspicious nuclear sites that it suspects may have been the location where nuclear weapons testing,may have been carried out or developments for those weapons may have been carried out and, so there are lots of areas,lots of gaps in Iran's story that it has yet to fill out.