Bitcoin isn't backed by a government which is why many people are attracted by it. What is the USD backed by? I'll give you a hint, it's a trick question. As for buying drugs, sex trafficing, etc., the one thing opponents to bitcoin are in denial about is that you can do the same thing with any currency and gold & silver too. And finally, the scare tactics of losing your bitcoin wallet and getting your wallet hacked, if you know what your doing you can prevent that. A bitcoin wallet is less likely to be hacked if it is attached to a email. It will NEVER be hacked if it is stored on a flash drive. Not to mention if one person gets robbed in 10k USD and one person gets robbed in 10k BTC, who is more likely to get their money back? I'll give you a hint, it's another trick question. So what other objections are there that can be overcome quite easily? I'll just sit here and wait. I've got all day. And by the way I'm on vacation in Vegas right now and there just happens to be a tech convention here. I've chatted with many of them attending the convention and they all seem to be pro bitcoin and guess what, none of them are selling drugs or appear to be sex traficers.