The government will gonna trace you if you are a bitcoin holder though exchanges. As we all know that bitcoin is anonymous and  a peer to peer thransactions. But  in some  other way if you invest  other kind of  alternative coin ithat needs middlemen  to complete transactions that  will require  you a kyc , your identification card and  passport while converting cryptovurrencies into cash. In that way  they can trace you if you owned such a bitcoin.