Bill Maher is still trying to wrap his brain around the incredible phenomenon that is the 3D printer, especially the unsettling news that the first 3D-printed gun has been fired.

On Friday night's episode of "Real Time," Maher lamented a Texas man's first-ever plastic gun creation known as "The Liberator" and was surprised to learn that the 3D printers, or "manufacturers," as he suggests they be called, can also create organs and cells.

"Of course, this is America. We made a gun, duh," Maher joked, before launching into a though-provoking discussion of the dangers and Constitutional issues surrounding 3D printers with his panel including "Star Trek" actor Zachary Quinto, MSNBC's Joy-Ann Reid, National Review columnist Charles W. Cooke and The Guardian columnist Glenn Greenwald.

Maher turned to the movies to support his theory about who would want to have a 3D-printed gun, referencing the movie "In The Line Of Fire," in which someone uses a 3D gun to get past White House security to assassinate the President.

"That's what they want to do," Maher said.

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  • A Human Kidney

    <a href="http://" target="_hplink">Last March</a>, surgeon Anthony Atala presented the results of his experiments with a 3D printer that uses livings cells to create a transplantable kidney <a href="http://blog.ted.com/2011/03/07/printing-a-human-kidney-anthony-atala-on-ted-com/" target="_hplink">at TED2011</a>.

  • A Grain Of Sand-Sized Racing Car Model

    These super small racing car models are about as small as a grain of sand and were <a href="http://www.huffingtonpost.co.uk/2012/03/13/revolutionary-3d-printer-models-vienna_n_1341335.html" target="_hplink">created by researchers at the Vienna University of Technology</a> using an extremely fast 3D printing machine. Watch the video above to see the printer at work.

  • A Model Of Stephen Colbert's Head

    MakerBot Industries <a href="http://www.huffingtonpost.com/2011/08/18/makerbot-stephen-colberts-head-space_n_930468.html" target="_hplink">had a little fun with their 3D printers</a> by creating a 3D model of Stephen Colbert's head and launching it into space using a weather balloon.

  • A Working Car Called The Urbee

    <a href="http://www.dailymail.co.uk/sciencetech/article-2041106/Urbee-The-worlds-printed-car-rolling-3D-printing-presses-.html" target="_hplink">Back in September 2011</a>, the world's first 3D-printed car, the "Urbee," was constructed layer upon layer using a special 3D printer. <a href="http://www.dailymail.co.uk/sciencetech/article-2041106/Urbee-The-worlds-printed-car-rolling-3D-printing-presses-.html" target="_hplink">According to the Daily Mail</a>, the car took 15 years to make, has three wheels, and features a petrol and electric hybrid engine.

  • Electric Guitars

    <a href="http://www.forbes.com/sites/tjmccue/2012/04/02/3d-printed-guitar-takes-instrument-design-to-new-level/" target="_hplink">According to Forbes</a>, Derek Manson of <a href="http://www.61.co.nz/" target="_hplink">One.61</a>, a New Zealand product development firm, is the mind behind the creation of these awesome-looking 3D-printed electric guitars.