What kind of speech posted in social media post do you find it awful that people can get arrested for? One should not escape prosecution for death threats, child pornography or hate speech just because it’s published in the form of a social media post. But I suspect you probably have something closer to a grey area in mind.

I’ve never experienced the recessed circles collecting more dust than blowing a single deep breath would solve. And I’ve never even seen any grime in them. I suppose of you used it outside, but every type would get grimy that way.

I suspect you’re thinking of a scene from Man of Steel. This is from the recently released Superman. And in this movie