I answered the questions on what I had to declare and anything regarding my identity and citizenship, along with presenting my passport. I also will answer the question to which countries I've been to, although I know of no requirement to do so. I will answer the question about whether I have currency and instruments exceeding $10,000. Other than that I will not answer, nor am I aware of any requirement to do so.

This caused me to be fucked with mercilessly for about 10 years. Eventually I was investigated by an HSI officer who seems to have determined I'm just a crazy libertarian or something, now I tend not to get held up terribly long.

Edit: I have tried to answer below questions but it appears I cannot post any more messages until a certain times elapses. Below commenter has repeatedly shifted his attack, it is clear only goal is to shift and attack my message through a series of moving questions that keep moving the goalposts. 'This' did not happen 10 years ago, some of the events happened 10 years ago, some of them significantly more recent, and I have pretty much fully defined what sort of questions were answered. But of course it's pointless to even reply such commenters as I know from experience they are only going to dig endlessly until a magic 'gotcha' is found as to why I deserve it.