CARL AZUZ, CNN 10 ANCHOR:  I`m Carl Azuz, and Fridays are awesome!  It`s great to have you watching CNN 10.
Tomorrow  marks 100 days since U.S. President Donald Trump was inaugurated.  It`s  considered a milestone for an American leader.  And the president is 
expected to attend a rally in Harrisburg, Pennsylvania, on Saturday to  talk about his accomplishments.  Like the three previous presidents, Mr.  Trump 
has gotten mixed reviews on his first 100 days in office, but he`s gotten lower approval ratings.  
In  a CNN/ORC poll conducted between April 22nd and April 25th, 44 percent  of respondents said they approve of the way Donald Trump is handling his  
job as president, 54 percent said they disapprove.  The findings were similar in several other national polls.  
On  the issue of national security, 50 percent of respondents approve of  the president`s work, 48 percent disapprove.  That number has held  steady in 
recent months.
For health care policy, 36  percent approve of the job the president is doing, 61 percent  disapprove.  That number took a hit after Republicans in 
Congress failed to pass the first version of their plan to repeal and  replace Obamacare, though they say they`re working on a compromise.
On  immigration, 41 percent approve, 57 percent disapprove.  The  president`s executive order temporarily banning immigration from certain  countries is 
current tied up in court.  
But  regarding the Supreme Court, the president`s nomination of Judge Neil  Gorsuch to fill a vacancy was a success.  He was narrowly confirmed by  the 
Senate and is now seated on the bench.
And on the  economy, 59 percent said U.S. economic conditions are good, 41 percent  said they`re poor.  The stock market has continued to climb despite 
hitting some bumps.
And  President Trump says he`s beginning to renegotiate NAFTA, the North  American Free Trade Agreement between the U.S., Canada and Mexico.
(BEGIN VIDEOTAPE)
REPORTER:  Italian fabrics, Japanese Kobe beef, American cars, where there are goods, there`s trade.
Trade  deals make it easier and cheaper for countries to trade with one  another.  They`re not necessary, but there`s a price to pay if you don`t  
have one.  Countries generally slap an extra charge on foreign products when they cross the border.
Free  trade deals can get rid of these tariffs, pushing prices down and  giving customers better access to foreign goods.  They can strengthen 
diplomatic ties.  Almost every country in the world has them.  Around  230 trade deals went into force between 2000 and 2016, according to  World Trade 
Organization. 
So, how do they work?  
Let`s  say two or more countries, Country A, Country B, and Country C, decide  they want a deal.  They gather important people around the table, 
lawyers, negotiators, regulators, and they hammer out the details.   They`ll work out the different sectors they want to focus on and discuss  ways to 
align their industry rules.  Leaders give their stamp of approval and generally, lawmakers have to ratify everything.
But  it takes time.  Modern, large scale trade deals between multiple  countries can take years to sign and there`s a lot of back and forth.   The 
recent free trade deal between Canada and the European  Union took nearly a decade to sign.  Even smaller trade deals can often  take a year or two. 
But not everyone is a fan.  Critics say  it`s better when the tariffs are in place and everyone minds their own  business.  They say cheap foreign 
products drown out domestic  industry and hurt local jobs.  But when trade barriers go up, countries  can hurt themselves, leading to higher prices, 
potential shortages and unhappy customers.
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AZUZ:   Quote, "An action that threatens our interests, our security."  That`s  what Russia says about the deployment of some U.S. fighter jets to 
the nation of Estonia.
Located  on the eastern part of the Baltic Sea, the country is a member of NATO,  the North Atlantic Treaty Organization.  It`s an alliance of European 
countries and the U.S.  And an American official says the deployment of  jet was planned after Russia took over Crimea, formerly part of  Ukraine, in 
2014.
(BEGIN VIDEOTAPE)
FREDERIK  PLEITGEN, CNN SENIOR INTERNATIONAL CORRESPONDENT (voice-over):   America`s newest weapon, the F-35, in the skies over Eastern Europe,  right 
where confrontations with Russia frequently happen.  
CNN  was given exclusive access to the U.S. stealth combat jet`s first ever  forward deployment.  Training with allied air forces is central  experience 
for the crews, a pilot tells me.
BRYAN  BLACKBURN, U.S. AIR FORCE:  We`re continuing to forward deploy and  bolster our native allies.  And so, it`s just our cooperation and to 
bolster the NATO alliance.
PLEITGEN:   We rode along on a tanker plane refueling the F-35 as they transited  to Estonia -- a country on the border with Russia and worried 
about Moscow`s aggressive posture in recent years.  
(on  camera):  With the deployment of the F-35, the U.S. is sending a very  clear message both to Russia but also to its partner nations, that it`s 
willing to put its newest and most advanced asset into this area to make sure it`s allies are safe.  
Russia`s  air force is increasingly flying planes like the nuclear capable TU-95  bomber around this area.  NATO jets often scrambling to intercept 
them.  
President  Trump has only recently stopped calling the NATO alliance obsolete.   Now, the F-35 deployment, another welcome sign of American 
commitment, Estonia`s defense minister tells me.  
UNIDENTIFIED  MALE:  This is very important to send this message, that this is the  border of NATO, this is the eastern border of (INAUDIBLE) that is we 
are ready to protect them.
PLEITGEN:   As part of this deployment, the F-35 crews get to know this contested  airspace and practice cooperation with other NATO air forces.  As 
tensions with Moscow show no sign of easing, this plane could become a staple of NATO`s eastern fringe.  
(END VIDEOTAPE)
(BEGIN VIDEO CLIP)
AZUZ (voice-over):  Ten-second trivia:
This is the molecular formula of what chemical compound?
Carbon dioxide, castor oil, chlorophyll, or caffeine?
It`s for a widely used central nervous system stimulant called caffeine.
(END VIDEO CLIP)
AZUZ:  And we mean widely consumed.  
The  U.S. Food and Drug Administration says that 90 percent of people in the  world use some form of caffeine.  One way that`s growing is through  energy 
drinks, and two prominent health groups, the World  Health Organization and the American Academy of Pediatrics, are warning  people about consuming 
energy drinks.  One reason, they don`t  just contain caffeine.  They sometimes include sugar, vitamins and  guarana, another stimulant.  And 
doctors say more research is needed into how these ingredients may interact with each other.
Experts  say too much caffeine alone can cause caffeine intoxication, leading to  insomnia, anxiety, restlessness, muscle twitching.  And they add 
that in adolescents, more than 100 milligrams of caffeine per day,  that`s about what`s in a cup of coffee, has been associated with  elevated blood 
pressure.
The American Academy of  Pediatrics says kids should avoid energy drinks altogether.  It says  teenagers should limit their intake of caffeine to a 
hundred  milligrams per day.  For most adults, the Mayo Clinic puts the limit up  to 400 milligrams per day.  The American Beverage Association says 
people worldwide have safely consumed energy drinks for decades, that  many of their ingredients are found naturally and that they`ve been  confirmed 
safe by government safety authorities.
It`s  prom season in the U.S. and not everyone who goes to the big dance is  used to the tuxedo or the gown, the boutonniere, the corsage, the dress 
shoes, or maybe just the stairs.
A  young couple in Palm Beach, Florida, were making the grand entrance  when -- oops!  He`s OK.  And his loving girlfriend lovingly tweeted this  video 
to share with the Internet and the world.
Hey,  prom is not supposed to be perfect, but it can be memorable, especially  if you lose a staring contest before you even step into the 
dance or slip-up before you slip out, or lose your footing before you`re  on firmer ground.  People might think he was trippin`.  But given the  steps 
his girlfriend took to allow others to stare, we`d say  they`re probably in step, basically a shoo-in for a great walk into the  future.
I`m Carl Azuz for CNN 10.