CARL AZUZ, HOST, CNN STUDENT NEWS:  Hey, happy Thursday.  I`m Carl Azuz.   This is CNN Student News.  It`s your passport to 10 minutes of global  headlines.  Today we`re spending time in North, Central and South  America, but we start in the Middle East.
The nation of Iran  has a controversial nuclear program.  Iran says the program is designed  for peaceful uses, but other countries, including the U.S., believe Iran  is trying to build a nuclear weapon.  One thing we know for sure is  that this program is moving forward.
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AZUZ (voice-over):  This is Iranian President Mahmoud Ahmadinejad in  the middle of your screen.  He was part of a presentation yesterday  where fuel rods were loaded into the core of a nuclear reactor.  These  are the first nuclear fuel rods made inside Iran, so this is a big  advancement for the country`s nuclear program.
The United  Nations and European Union have put sanctions -- penalties -- on Iran in  part because of its nuclear program.  Those sanctions have been  affecting Iran`s economy and its citizens.  President Ahmadinejad  responded to the latest sanctions yesterday.  He said Iran will cut oil  exports to six European countries.
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AZUZ:  Moving to the Central American nation of Honduras, where  officials are investigating a deadly fire at one of the country`s  prisons.  It happened overnight on Tuesday, and as of Wednesday  afternoon, at least 272 inmates had died.  The fate of more than 100  others was unknown.
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AZUZ  (voice-over):  This was a minimum security prison that can hold around  850 prisoners.  More than half of the facility was affected by the fire.   One survivor said he and other prisoners were asleep when they heard  screams. 
He said everyone ran for their lives.  Authorities  don`t know how the fire started.  They`re looking into whether a short  circuit might have sparked it, or whether a prisoner might have set a  mattress on fire.
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AZUZ:  All right.   Let`s say you`re China`s vice president and you`re visiting the United  States.  Where do you want to go?  Muscatine, Iowa, is where.  Chinese  Vice President Xi Jinping insisted on a stop in the town yesterday.   It`s because he spent two weeks in Muscatine back in 1985, and he wanted  to visit with his old friends.  
Ted Rowlands has more on Vice President Xi and what his leadership could mean for the relationship between U.S. and China.
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TED ROWLANDS, CNN REPORTER (voice-over):  Iowa Governor Terry Branstad  was serving his first stint as governor when Xi came in `85.  The two  met again last fall in Beijing, and Branstad says the next Chinese  leader said he wanted to come back.
GOVERNOR TERRY BRANDSTAD  (R) IOWA:  He was so pleased with the warm and friendly welcome he  received, and he really considers Iowans his old friend.
ROWLANDS (voice-over):  Experts say for years, Xi was known mostly for  his famous wife, a Chinese singer, while his lineage runs deeps in the  Communist Party, he represents a new generation of leaders.  Former  Ambassador to China Jon Huntsman believes Xi could be good for American  business.
JON HUNTSMAN, FORMER AMBASSADOR TO CHINA:  He`s gone  out of his way in recent years to bone up on economics and trade,  knowing full well that these are the issues that are going to determine  whether or not the United States and China are able to get through the  years to come.
ROWLANDS (voice-over):  China has been blamed  for the loss of thousands of American jobs, some of them here.  But  China buys soybeans, pork, farm machinery and other products from Iowa.   In fact, from 2000 to 2010, the state enjoyed a 1,200 percent increase  in exports to China.
Governor Branstad wants to expand that relationship and thinks Xi will help.
BRANSTAD:  Personal relationships are really important to the Chinese  people.  Having this kind of relationship with the next leader of China,  I think, is very helpful to the state of Iowa.
ROWLANDS  (voice-over):  People here are exciting, including the Maeglins, who say  they are honored that the man standing in their kitchen 27 years ago  wants to come back.
DICK MAEGLIN, MUSCATINE, IOWA, HOST:  Just  for a little time, time spend an hour, hour and a half, in the room  with, as he says, his old friends.  That`s significant.  That`s  significant if he weren`t the president.
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AZUZ (voice-over):  On this day in history, back in 1923, British  archeologist Howard Carter opened the tomb of ancient Egypt`s Kind Tut-  ankh-amen.  
In 1959, Fidel Castro was sworn in as the new  leader of Cuba.  The former revolutionary established Cuba`s communist  government, which he ran for nearly 50 years.
And in 1968, an official in Alabama made the first 9-1-1 call.  He was testing the new nationwide emergency number.
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AZUZ:  All right.  You know that phrase, "I smell a rat," definitely  applies to our next story.  But the real question is, what does the rat  smell?  Police officials in the nation of Colombia hope the answer is  explosive.  You`ve heard of bomb-sniffing dogs.  We had a report  recently about dolphins that help identify mines.  Rafael Romo reports  on their rodent counterparts.
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RAFAEL ROMO, CNN REPORTER (voice-over):  At a base at the Colombian  National Police, a new recruit is being trained.  Today`s mission for  this four-legged trainee is to find the scent of an explosive device  hidden underground, which it does in less than a minute.
UNIDENTIFIED MALE:  (Speaking Spanish).
UNIDENTIFIED FEMALE:  (Speaking Spanish).
ROMO (voice-over):  The white rat is showered with praise and a reward.
Though safer than a decade ago, Colombia is a country where land mines and car bombs are still a threat.
EDGAR RAMIREZ, LIEUTENTANT, COLOMBIAN NATIONAL POLICE (through  translator):  Colombia still faces conflicts, such as guerillas and  criminal and paramilitary groups.  There are many disputed territories  because of the drug trade, or simply to take control.  And many groups  set up land mines in these territories.
ROMO (voice-over):  In  the past, the Colombian police used bomb- sniffing dogs, but their  weight would often trigger the explosives.  That`s not a problem for  these rats, which weigh slightly less than a pound.  And according to  the trainers, their sense of smell is just as good as a dog`s.  Rats  have already been used in Mozambique to detect land mines.  One  disadvantage is their short lifespan.
RAMIREZ (through  translator):  These animals live only three to four years, which is a  relatively short period of time from a human perspective.  On the other  hand, they`re very prolific.  They reproduce themselves exponentially in  a very short time.
ROMO (voice-over):  So far, the rats have  been trained to detect seven different kinds of explosives.  In the  process, they`ve become relaxed around humans, and even get on with the  cat that protects them from other predators.
ROMO:  Officials  with the Colombian National Police say they expect to take the  bomb-sniffing rats into the field in the second half of this year.  They  also say they`ve been able to successfully train about 70 rats in the  last four years since the project began, and have been able to learn a  lot about how the rodents can help them clear fields full of land mines  in the Colombia countryside.  Rafael Romo, CNN, Atlanta.
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UNIDENTIFIED FEMALE:  Today`s Shoutout goes out to Ms. Roberts and Ms.  Briel`s American government class at Reservoir High School in Fulton,  Maryland.
Which of these words specifically describes a student  who skips school?  Here we go.  Is it delinquent, tardy, didactic or  truant?  You`ve got three seconds, go.
A student who`s out of school without permission is truant.  That`s your answer, and that`s your Shoutout.
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AZUZ:  There`s a charter school in Cincinnati, Ohio, that`s tried  different ways to fight truancy.  They`ve tried pizza parties.  They`ve  given students occasional Fridays off.  But nothing really seemed to  work.
So the principal`s trying out a new idea:  money.  
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AZUZ (voice-over):  Show up for school and behave well, and you`ll get  paid.  Seniors can get $25 per week.  Underclassmen can get 10 bucks.   Private donors are helping put up the money, and the school`s principal  says the program also helps students save for the future.
RAMONE DAVENPORT, PRINCIPAL:  Each time a student gets paid, we take $5  and put into a savings account.  So when that student graduates, they  will at least graduate with some type of funds.
BETHANIE  NICHOLSON, STUDENT:  (Inaudible) like this is a job.  Why am I not  getting paid?  And I`m getting paid now, so getting paid to come to  school, like that`s every kid`s dream.
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AZUZ:  All right.  So some students think this is a great idea -- not  all of them agree.  Principal Davenport says he`s gotten some complaints  about paying students for something they should be doing anyway.
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AZUZ (voice-over):  Well, we`re taking this to our blog at  cnnstudentnews.com.  Want to know what your opinion is on this.  Would  paying students help them in terms of their attendance?  Would it help  them get a better education?  You can talk to us on our blog,  cnnstudentnews.com.  Remember, we`ve got one big rule we want you to  follow there.  It is first names only.  Look forward to hearing what you  have to say.
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AZUZ:  Well, before we go, an instrumental invention that is out of this world.
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AZUZ (voice-over):  It`s a Millennium Falcon electric guitar.  It might  sound like other six-strings, but something tells us the force is  strong with this one.  The head is shaped like a famous droid, so you  can R2-D-tune up the instrument.  And the body is built from a  Millennium Falcon toy.  What`s amazing is the guy who made this had no  previous experience building guitars.  He was a total Wookiee.  
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AZUZ:  But he had no reason to fret.  The awesome creation is bound to  make him a Star -- Wars.  "Ikess (ph)" he`ll be able to use it in a  band, but a Millennium Falcon guitar seems built for a Solo career.  We  hope you "guit-ar" sense of humor.  If not, maybe tomorrow offers a new  hope.  For CNN Student News, I`m Carl Azuz.