Original sentence: ..some possible applications [with] electromagnetic wormholes include the creation of invisible fiber optic cables, for example for security devices, and scopes for MRI-assisted medical procedures for which metal tools would otherwise interfere with the magnetic resonance images.The effectiveness and implementation of [this technology] in practice, however, are dependent on future developments in the design, investigation, and production of metamaterials.The invisible optical fibers could even make three-dimensional television screens possible in the distant future