> For example, to fund a spy in China, you'd need to pay him in Yuan but the Yuan is a highly controlled currency... and guess what e-currency is highly popular

> For example, to fund a spy in China, you'd need to pay him in Yuan but the Yuan is a highly controlled currency... and guess what e-currency is highly popular in China? AliPay. Can any "e-currency" actually be described as "highly popular"? Sure Bitcoin is the most popular, but that doesn't mean that it's popular. Let's put it this way. My parents know what ApplePay is. They've never even heard of Bitcoin.