3D printers, an emerging technology, use computer-created digital models to produce a variety of objects, including toys, mechanical components, and even food. There is hope now, too, that 3D printers could someday create much-needed organs for transplants. Printing human organs is still years away, but many medical professionals are optimistic and see great promise with the technology. A major challenge will be the ability to create the material, which is biological in nature.

What do you think?