Comment Re:good luck with that. (Score 1) 276
A US CBP Agent absolutely can prevent a U.S. Citizen from entering the country. So can a ICE officer. But more likely they will call your device "contraband" and seize it, and you may be subject to extensive "interviews." (read: interrogation).
Remember that CBP has a long memory -- if you do anything off-color, you will be flagged for extra attention forevermore. Argue with them once and you'll be on their shit list forever. Don't declare something and get called on it and you'll be on their shit list forever.
It is best not to fuck with immigration officials.