None of them? They probably have their btc stored in unsafe environments.
Simple way to secure your BTC: 1. Put bitcoins in a wallet. 2. Encrypt. 3. Upload wallet to several places on the internet where you can access them all over the world
That is a great way to spread the word about Bitcoin. Not only do more people learn that Bitcoin is an alternative to dollar, euro, yen, - but the message gets passed around, and around, and around while the old school currencies are diminished.
Let's use old school currency (fiat) as our message carrier. Where can I buy a stamper to stamp all my notes? If everyone also buys a stamper and stamp notes in their country - EVERYONE will know about Bitcoin in a hurry.
Somebody please organize sales of stampers and tell us where to buy them!!! You could make a shit ton of Bitcoin if you started selling these next week. I'd buy one today!!!
A very curious thing about this, it is NOT illegal. The law defines 'illegal' defacement as defacement that renders bills unfit to be re-issued.