Justin Bieber’s days of easily coming in and out of the U.S. are over! Now, he will be a target of U.S. Customs EVERY time he comes back to the states. When Justin flew into a New Jersey airport from Canada last Friday, it took hours to let him go… U.S. Customs searched his plane and then gave him bad looks for hours. Law enforcement sources say, “Custom’s flagged Bieber because he’s on a Homeland Security watch list for his 2 ongoing criminal cases. Bieber is subject to the exact same treatment every time he leaves and then re-enters the U.S. — a thorough search and then exhaustive questioning.” One thing that’s hard is that it’s tough to get off the watch list once you”re on it. You can appeal to Homeland Security but the agency has broad discretion. Even crazier, if Bieber is found guilty or pleads no contest to any criminal charge, it will be extremely difficult for him to go under the radar again. As one source says, “He’s gonna do what he wants to do.” So.. he apparently doesn’t care.