suggested compiler feature.

[Howard I. Cannon <HIC at MIT-MC>]

The reasoning behind expanding atomic macros in lambda lists (in my mind)
is that you might define something like:
(defatomicmacro MAGIC-VARIABLE
	<the particular magic variable for this program>)

and you could then use MAGIC-VARIABLE all over the place and have
it be replaced automatically (this could be great for macro 
packages and the like, I suspect).  Anyway, that's the basic theory.