I voted to close the question. It was in the review queue and I try to check the queue periodically.
I concluded that it was too broad because the USA is about 5 time zones and it's possible to see just about anything. You can see people getting murdered on the street in LiveLeak for example. If you visit around San Bernardino County, you'll see people milling about with visible firearms. Same thing in Klan country; if you go off the beaten track in Spartanburg County you will also see people sporting visible firearms. Those two places are three time zones apart.
Personal experience: If you go wandering around in Harlan County in places you are not meant to be, you'll not only see some firearms you might get to see them drawn, locked and loaded.
Moreover, your question was a binary question where a single word ('yes' or 'no') is the answer. An yes/no question over an entire continent isn't going to work. Somebody is supposed to know 50 different sets of rules? Too broad. Too many answers...
Despite the closure... The question has been answered and has been accepted by the OP so presumably it's all come to a happy ending.
Adding...
Given the nature of your comments in this thread I think it's clear that you have a strong attachment to questions about firearms in the US. Your question here in META has been answered in good faith by those who opted to disclose their reasons. Challenging their rationales in protracted comments describing firearm laws in the US is unlikely to stimulate improvements to the site. The downside risk for you is that people may be reluctant to engage with you in META because there is no benefit to doing so.