It is called Bibles Unbound.
This organization's main goal is to get bibles into the hands of unbelievers in the most restricted nations in the world.
Right now they have missions in Columbia, North Korea, Egypt and China.
Believers in these nations secretly collect names of unbelievers that have shown an interest in knowing more about Christianity. The believers then send the names and addresses of these curious unbelievers to bibles unbound who in return either mail or "smuggle" bibles into these unbelievers.
What an awesome way to reach the unreached!
Check out the Bibles Unbound video and website and get excited about what God is doing through His people!