[net.space] SDI defenses & 7 warheads

@S1-A.ARPA,@MIT-MC:jcp@BRL.ARPA (04/30/85)

From: Joe Pistritto <jcp@BRL.ARPA>

	An interesting feature of most proposed SDI system is that
they would be most vulnerable to 'overwhelming' by massive #s of
missiles.  This would tend to indicate that warheads that did get
through would be clustered in a geographic region, possibly lessing
the 'overall' damage somewhat.  Of course, certain regions of the
country have clustered targets (such as the Northeast), which would
accentuate this effect.

	The greatest effect, of course, of an SDI is that it would
render useless (even at an effectiveness of 80% or so), any military
calculations based on destruction of specific targets, forcing the
opponent to use other means (such as cruise missiles), or to use
truly massive (exponentially massive as effectiveness is increased),
numbers of warheads to destroy known targets.

	Note that all current nuclear scenerio thinking revolvs
around destruction of specific classes of targets using specific
kinds of weapons.  SDI type defenses invalidate all that thinking.

							-JCP-