Hardly, the commies inside the government and out were keeping theirs REAL low at the end of the 50's when Alinsky was still a two-bit community activist/instigator. On the right was the fringe John Birchers. The military industrial complex was still in its infancy and social engineering and conditioning via mass media was more theoretical than actual. 1963/64 was the year of the First Great Churn.
[They] always had this in the arsenal. Problem is that the very FIRST incident would justify the immediate arrest of EVERYONE including the Mockingbird MSM by the U.S. Military as 'enemy combatants. The American People would clamor for the Death Penalty as the fallout from radiation sickness would be the "drip..drip..drip.." of one agonizing death after another. Children, the elderly infirm, and worse, "expectant mothers".