Proponents
The nations that we face as threats
do not possess the ability to
produce countermeasures
complex enough to deceive our defenses
Must keep in mind who it is
we are defending against
(North Koreas economic
resources; sophistication of
Soviet Union)
We have prepared for countermeasures which are far more complex than anything the offense could use
Opponents
Too many unknowns
BMD program cannot be pushed
forward before we understand
how to deal with the
countermeasures of the
offense
We do not yet know what countermeasures
are within the
technological capabilities
of the threatening nuclear
states, nor how effective our program would be in defending against them