(CNN) -- With just a few clicks of a mouse, kids as young as 12 can have free condoms delivered to their doors in California. And that idea is garnering mixed reactions from Californians.

(Not really political but an interesting subject, Plus, what if it started in the military)(CNN) -- Video producer's note: You've heard of 3-D printing, the process of using a specialized printer to create real-world objects from computer models. Now there's something new on the horizon that could revolutionize this burgeoning technology: 4-D printing. At TED 2013, senior fellow Skylar Tibbits sat down with CNN Ideas to further explain this mysterious fourth dimension in printing technology.