Explanation: The result of August 1964, two US destroyers in the Gulf of Tonkin in Vietnam where they radioed that they had been firing upon by Northern Vietnamese forces. For the reports of these incidents, President Lyndon B. Johnson requested permission from the US Congress to declare war or to increase military presence.
Fallout shelters are still someone in use but not for the purposes of nuclear fallout, only severe storms, etc. Th Interstate Highway System is the best choice from this list.
