] In this C&EN exclusive "Point-Counterpoint," two of
] nanotechnology's biggest advocates square off on a
] fundamental question that will dramatically affect the
] future development of this field. Are "molecular
] assemblers"--devices capable of positioning atoms and
] molecules for precisely defined reactions in almost any
] environment--physically possible?

it's not short, but probly worth reading for all the nanotech peoples out there.

C&EN: COVER STORY - NANOTECHNOLOGY