269. Memorandum From the Assistant Secretary of Defense for Systems Analysis (Tucker) to Secretary of Defense Laird1
I talked with Paul Nitze on 4/27/72.2 The following observations are the result.
[2 paragraphs (19 lines) not declassified]
NSDM–158, para. 17 authorizes Smith to state: If the USSR were to undertake a concerted program which substantially increased the threat to survivability of our strategic retaliatory forces, the U.S. would consider this to jeopardize our supreme interests. Consequently this could be a basis for withdrawal from the ABM treaty. (Smith has not yet made this statement and seems very reluctant to do so.)
[4 paragraphs (19½ lines) not declassified]
I plan to come to you shortly with a discussion of alternative ways to exercise the essence of paragraph 17.