First of all, it sounds kind of dangerous. But that's only if it's true, which I think it is not. Trump deals in all things "too good to be true". This is just another one of those things.
North Korea didn't call him asking to talk, they're not going to dismantle their nukes and this meeting will never happen. This is just a distraction for the Stormy Daniels fiasco.
Even if it was a real thing and Trump could be an adult and keep his mouth shut up until the meeting, it doesn't matter anyway because this whole thing is not true. I don't care if that South Korean guy went on TV to announce Kim Jong Un's willingness to talk -- by the time the meeting happens we'll find out "oops, something happened. Guess we're back to square one with North Korea. You guys forget about that Stormy Daniels thing yet? And all the meetings with Russia? And the Special Counsel criminal probe? And the mass exodus of high ranking officials in my cabinet? And all that other crazy shit that would have sunk any other president in one week?"
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