Regarding Trump’s allegedly probable ban or tax on remittances to Mexico to pay for his wall ..
Government can regulate the flow of money to Mexico via Western Union, MoneyGram, Bank wire transfers, etc. .. (You wanted big government? You got big government!) ..
However, they can not regulate the flow of Bitcoin, a decentralized stateless currency, to Mexico without a highly unlikely blanket ban on it’s purchase at an exchange ..
Bitcoin wins again ..