How to buy CSPR in the US?

Could you please elaborate on the steps involved in purchasing CSPR, or Casper, in the United States? As a cryptocurrency enthusiast, I'm interested in diversifying my portfolio and CSPR seems like a promising investment. Could you guide me through the process of selecting a reliable exchange or platform to buy CSPR, setting up an account, funding it, and ultimately executing the purchase? Additionally, would you recommend any specific considerations or precautions I should take while making this transaction? Your insights would be greatly appreciated.