I agree, and I could have been more precise. I highly doubt we'll live in a world where the AES algorithm or source code or even binaries is illegal. The crime

I agree, and I could have been more precise. I highly doubt we'll live in a world where the AES algorithm or source code or even binaries is illegal. The crime will simply be if the gov can show you were using information-hiding practices illegally, such as without an adequate key escrow system (for a large-scale deployments) or refusing to decrypt communications when asked to by LE.