uses for specials

[masinter.PA@Xerox.ARPA]

I've seen more than one program that constructs expressions on the fly,
and then EVALs them in another context. 

PROGV has an implicit local special declaration. 


As long as an incompatible name is being considered, how about changing
the name? While there's some amusement in having SPECIAL a special form,
the novice may well wonder, "well, what's so SPECIAL about them?". Guy
was careful to call them DYNAMIC in the book; it sounds like a more
appropriate name for a (different syntax) declaration.