re: Well we have always need to protect against the possible "bullet"...
I think it can belong in both places. If we are talking about suits on the Moon being worn by people who are going to be on the surface for periods of time far longer than any Apollo astronaut was, then finding ways to protect them against meteoroids is a viable issue.
I once read an Arthur C. Clarke story about a future lunar suit that fit the person like a body suit - tight, not Apollo-style bulky. I can't recall the details, though I am sure Clarke worked out some of the engineering on them. Are such suits possible?