Everything required to intercept bitcoin payments is in place today, and almost worldwide. You can laugh now, but by the time this short post is finished you will realise the truth.. that bitcoin WILL fail, and not of it's own accord, but due to the fact that it is indeed a threat to any and all established currencies of the world, and hence a threat to those countries security.
tomorrow, i can burn my bank with a 15 euros vodka bootle and a zippo ... can i do this ?
no.
now, eurozone can freeze and tax 10% of the whole saving (4000 Milliards of Euros).
can states do this ?
yes.