> Why will I fail?

Because you have to compute with established entities: http://www.gsm-security.net/gsm-security-vendors.shtml

Secondly, people seem to be generally disbelieving that their communication are being monitored and don't care to take precautions about it. E-mail encryption is arguably much easier than telephone and yet no one does it.

-- ElidedElided - 04 Nov 2009