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.
O n March 6, 1961 President John F. Kennedy issued Executive Order 10925, which included a provision that government contractors take affirmative action to ensure that applicants are employed, and employees are treated during employment, without regard to their race, creed, color, or national origin..he intent of this executive order was to affirm the government's commitment to equal opportunity for all qualified persons, and to take positive action to strengthen efforts to realize true equal opportunity for all. This executive order was superseded by Executive Order 11246 in 1965.