Sure you can: make the destination implicit (via protocol) or explicit on an out-of-band channel. — Taking all your mail [ingoing or outgoing], opening it copying/photographing the contents, resealing it and inserting it back into the normal postal flow doesn't require a third address... and that's basically what the NSA's PRISM (and data-centers) are supposed to do.
You are talking about data that has already left the iPhone and is in someone else’s hands — and that wasn’t what I was talking about. You’ll see I specifically mentioned this.
Quoting myself ...
Data you create yourself and send out onto the Internet are things like a phone call you make, a text message you send, an e-mail you send, a face-to-face video call you make, etc.
With all that, you INTENTIONALLY and with purpose SENT THAT DATA out onto the Internet. Once it’s “on the Internet” someone else can snag that data. That’s not a security risk or problem with the iOS device, because the data is being snagged apart from the iOS device and far away from it. THAT is definitely going on ... and that has been amply reported. That’s not a defect in the iOS device.