President Trump isn't letting South Korea off the hook for the Alaska LNG pipeline just because they're still studying it instead of signing. They were represented at prior talks, but since they haven't approved the deal yet, he's making it clear that if they don't sign shortly, he's going to double up the price. This is exactly what happens when a country tries to screw over Americans on billions in energy projects including nuclear. He didn't jump the gun and told Ben to pass the message along: failure to uphold their agreement brings major consequences.