Why Binance is not allowed in usa?

Could you please clarify why Binance is not permitted in the United States? I'm curious to understand the reasons behind this regulatory decision. Is it due to concerns over the security of cryptocurrency exchanges, or perhaps something related to tax compliance? Alternatively, is it a matter of Binance's business model not aligning with US financial regulations? I'm eager to gain a deeper understanding of this situation and how it might affect the cryptocurrency landscape in the United States. Could you provide some insights?