>>“None of your business,” I said.
That's not being polite. Being polite would be to say "Just visiting for fun".
It sounds like he didn't want to get through passport control.
Much of life is about jumping through silly arbitrary hoops to get what you want. In the case of getting through customs+immigration, you just keep quiet, don't cause a fuss, and tell them what they'd like to hear.
No, that is revealing information unnecessarily.
"Sorry, I am not required to answer that question" is a polite version of "none of your business".
Jeez this is verging on some conspiracy theory where you disclosing the fact that you had fun/thought you may have fun implicates you in someones murder.
Either you answer the question with a nondescript answer "I like China" or you're just being a dick.
Reminds me of the idiotic thinking of Richard Stallman.
I have no time for 'principled' martyr type people who cut off their nose to spite their face.
You may not see any problems with it, nor agree with the article's assertions. That is your choice. Equally the "dick" is allowed to tell them it is none of their business - though I think my (slightly more) polite version would be better.
And as has been stated elsewhere, the security personel are allowed to detain them, submit them to body cavity searches and be equally dickish.
It goes both ways...
Actually it usually goes only one way..
It's pretty difficult to believe it makes anyone feel safer, and if it does, it's comparable to believing in "change you can believe in".
thats not being polite, that is answering the question and thereby opening yourself up to accusations that you were being misleading.
"None of your business" was a simple statement of fact, neither rude nor polite.