Originally Posted by
vesicle
Then they can give me a "secondary" should they choose to use TSA like retaliatory measures. Knowing why I was outside the country or searching my things has nothing to do with proving my citizenship.
Correct. But it does have to do with what you're carrying. Customs and Immigration are two segments of one process. Being evasive/hesitant about where you've been could be related to any number of things. Or just someone proving a point. You never know until you check it out.