That's true for phone calls for people that know how to do this. However: 1. Most people are unable to do this technically. 2. The fact that you do it may con

That's true for phone calls for people that know how to do this. However: 1. Most people are unable to do this technically. 2. The fact that you do it may constitute prima facie evidence of being a person of interest. 3. The government is trying very hard to get the means to wiretap VoIP. 4. It doesn't address traffic analysis at all. I know you said you aren't concerned about this, but there are plenty of people who are, and the government is going like gangbusters (literally, I guess) toward this.