Trump: N. Korea 'a big problem,' must 'be solved'
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US President Donald Trump used the first moments of his Asia trip on Sunday to denounce North Korea as "a big problem" that must "be solved."
Trump told reporters traveling with him to Japan on Air Force One that "there's been 25 years of total weakness" in dealing with the North.
Some regional analysts have speculated that Trump's presence in Asia may prompt North Korea to take provocative action, such as carrying out a missile test.
When asked about that possibility, Trump said: "We'll soon find out."
