"Compliance measures on crypto-currency are expensive. We'll be charging a 3% compliance tax on all crypto-currency holdings, and we'll do this via any US-registered crypto-brokers charging a withholding tax unless you can prove it's double-taxation; also any failure to pay this is tax evasion and will be prosecuted as such"

you'll see some hard forks. Also this is a _great_ idea as it increases tax revenue, increases investment in US bonds and stocks, _and_ it suddenly swells the value of US Govt gold reserves.