TMZ Live 12/24/13: President Obama's Vacation -- Crossing the Line

President Obama is responsible for the most dangerous tourist trap in the world -- the invisible line that vacationers in Hawaii risk crossing when getting too close his vacation house. But we gotta ask ... isn't it putting people -- and the Prez -- at risk? Plus, Zac Efron takes a page out of Alec Baldwin's playbook -- and makes a huge joke out of a PR nightmare ... aka his broken jaw. Did Zac pull off the perfect play? Reese Witherspoon gets behind the wheel after drinking wine -- and there are two conflicting accounts of what really went down. We'll tell you both ... and let you decide for yourself.

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