Don't confuse oyster shell with grit. Grit is insoluble. It stays in the gizzard and it's used to grind food. Oyster shell dissolves in the gut and its job is to add calcium to the diet of laying hens.
Kennedy's strategy of flexible response, managed by Robert McNamara, was aimed to reduce the possibility of war by miscalculation. Kennedy's administration contributed to the peaceful resolution of the Cuban Missile Crisis and refrained from further escalation of the 1961 Berlin Crisis.everal of them were from the foreign policy think tanks. Kennedy had been interested in the issues of war and peace since his youth. In his inaugural address Kennedy encapsulated his Cold War stance as following: Let us never negotiate out of fear. But let us never fear to negotiate.
In June 1963, President Kennedy continued his policy of affirmative action by issuing another mandate, Executive Order 11114. The order supplemented to his previous 1961 executive order declaring it was the policy of the United States to encourage by affirmative action the elimination of discrimination in employment.uring the Nixon administration, affirmative action was adopted as a federal mandate for companies with federal contracts and for labor unions whose workers were engaged in those projects. This revised Philadelphia Plan was spearheaded by Labor Department official Arthur Fletcher.