A US visa stamp is only issued in a consulate. It's true.
A question not being true is a novel concept to me. I was genuinely curious what country has an office equipped to interview and background check any foreigner in the world. But apparently it's not true, whatever that means.
You also proclaimed that one can "renew" a US visa in the country. You seem to be reading something that is not written and knowing something that is not true. Good luck with that!
