Recently, Larry Dighera posted:

Excerpt from article at link:


http://www.newscientist.com/channel/...o-problem.html

(snipped for brevity)

While "the industry" wonders what "equivalent" means, some obvious issues
appear to be minimized, if not ignored. It's not difficult to understand
that any flight control methods that depend on remote radio control and
communication will be inadequate to provide safety in civil airspace. TCAS
is a necessity, but still does not provide separation for aircraft without
transponders. Until AI is advanced enough to allow UAVs to act
autonomously, they will not even approach the loosest interpretation of
equivalence.

Neil