method 1
step 1: seize all exchanges simulaneously
step 2: ban exchanges
method 2
step 1: stop QE
method 3
step 1: build mining park
step 2: kill switch the internet
step 3: start invalidating previous transactions with mining park
method 4
step 1: criminalize cryptocurrencies
He seems to have a lot of answers here. This is one of those threads I've seen 7 or 8 times before, should almost be a sticky/faq somewhere.