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So i think there's caution optimism near south korea. but they are keeping a little bit in reserve because just like the rest of us, the south korean government is not sure how this is going to play out. >> we'll have to wait and see. matt rivers live in seoul, south korea. thank you. let's talk more about this now with peter matthews. he's a professor of political science at cypripypress college. again, this on again, off again approach to this summit. is this trumpian theater that we're seeing or some sort of negotiating tacttactic? what do you make of what's happening. >> it's a very dang...

That was in 2007 when he waged a war and beat back immigration reform being push by a republican president, george w. bush. that same tactic in 2007 is being brought around this time. >> it's harder. jeff sessions represents that core of people who they will never be for immigration reform. he wasn't before. >> aren't they strong enough to hold it up? >> last time he -- he won last time. he helped derail immigration reform. this time the calculus is different. they are raising a ruckus and we have a foclk vocal minority. right now depends on the speaker going forward. >> do you see caution opt...

the crisis, by drought, poverty and violence. half of the camps are fled to ethiopia and kenya. a man who was accused of strangling a woman, has been sent to prison. her killer went to extraordinary lengths to avoid arrest for more than two years, altering his face through cosmetic surgery. the space shuttle "atlantis" is about two hours from landing at the kennedy space station. the crew will fire the engines to re-enter the atmosphere and end america's 30-year shuttle program. those are the headlines from cnn. i'm monita rajpal. "world business today" starts right now. >> a war...