Why do you need to use a hardware wallet like the NANO LEDGER to transfer money from one person to the next, when you can simply transfer it from one Bitcoin address to the next? A hardware wallet will draw attention from customs, like we have seen before, when custom officials strip searched a person for wearing a Bitcoin t-shirt. 
Bitcoin is definitely not all about criminals and secret government agencies, like it is being portrait in movies and the media. A lot of people are using it for legitimate business and legal trading on regulated exchanges.
I still wonder up till date though, why a lot of people tend to attribute bitcoin to criminal activities as if, looting over the years have not been existing? Bitcoin is definitely not all about criminals and secret government agencies, like it is being portrait in movies and the media. A lot of people are using it for legitimate business and legal trading on regulated exchanges.
Criminal will always find a way to do their dirty works no matter what, but one thing for sure is that bitcoin is even pseudo anonymous and for a criminal to have converted funds to bitcoin, most especially for a huge sum like that, it must probably be through exchange, which we know it would be hard to get such sum from exchange without even a KYC.
Like you said, transfers can always be done across board without having to hold it on you, but rather than looking at the bad side of things, it is a lot better when we look at the value it has actually created and will keep creating.
I`m not looking just that the bad side there is also good. Drugs the BAD but taking to power out of too big to fail (JP MORGAN) is a good thing.