Those currencies are issued by governments. Bitcoins are not. If the US Department of Justice decided to crack down on Bitcoin, there wouldn't be a damn thing any BTC user could do about it. Also, I think it'll be interesting to see what happens when the capital gains being made from Bitcoin reach a level where the Internal Revenue Service decides it's worthwhile to start pursuing people for them.
DOJ??? I don't even think you know what department would be 'cracking down on bitcoin'. FYI the US Government officials of the relevant agencies go and give talks at conferences on bitcoin. Members of the Bitcoin Foundation go and talk with people in Washington DC in various agencies.
Capital gains? Pursuing? What in the world are you talking about ? Let me guess - you presuppose that people owning bitcoin are not paying appropriate taxes in whatever countries they reside.
Are you still in the habit of beating your wife?
(for the clueless...this is a classic example of mis framing and presumption in logic)
The anonymity of bitcoin is probably insecure. I heard an ex NSA employee talking about how the TOR network could be snooped on. What they do is to have a very broad spectrum of traffic to examine, and from that information they can identify all kinds of specific information.
More vague groundless assertions based on wrong premises.
Bitcoin is correctly described as pseudo-anonymous. The blockchain cointains public key records, to/from, amounts, dates. No private keys. Therefore, the block chain cannot track to individuals.
Tor has nothing to do with bitcoin. It is a peer to peer network system.
Look, the easiest way to stop being naive and making wrong assumptions is just to get a wallet, get some bitcoin and do a couple trades. Maybe something like coinbase.com for $50. No big deal. Then head over to coingig.com and buy a couple things just for fun.