NYT - Security Pioneer Creates Service to Encrypt Phone Calls and Text Messages
The New York Times reports: "At a security conference in San Juan, Puerto Rico, Mr. Zimmermann introduced the service, which is available for Android and iPhone. Silent Circle lets users make encrypted phone calls, send text messages and do  videoconferencing. Messages are scrubbed completely from the phone after a predetermined amount of time. Communications are secured using a new, peer-reviewed open-source encryption technology."

Comment: Those of you serving as missionaries in repressive countries might benefit from this service, it might protect you and those you minister to.