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  1. Materials Science

    Cornering the Terahertz Gap

    Controlling light’s path could enable invisibility or harness an intriguing but so far elusive stretch of the spectrum.

    By Ashley Yeager

  2. Networks of Plunder

    Archaeologists tracing the labyrinth of antiquities trafficking hope to shut it down, or at least slow it up.

    By Bruce Bower
  3. Life

    Live Wires

    Cells reach out and touch each other with tunneling nanotubes.

    By Laura Sanders

  4. Treaty on antiquities hinders access for museums

    Treaty on antiquities hinders access for museums JAMES CUNO Like water on a leaky roof, looted artifacts are finding the path of least resistance to a buyer somewhere. Art Inst.