The summary [1] is worth reading. Apart from protecting against fallout radiation exposure, the most urgent need is transportation, to deliver food. <excerpt>

The summary [1] is worth reading. Apart from protecting against fallout radiation exposure, the most urgent need is transportation, to deliver food. <excerpt> ... the location of people as planned with the current program and the location of grain stocks indicates a possibility that millions may perish from food shortages unless food shipments are begun within two or three weeks after the attack. Sufficient grain to feed the entire population of the U.S. for several months to more than a year, depending on the season, exists in storage in the local areas where it is produced. When the quantity of grain in storage is less than a year's supply, there is adequate grain growing in the fields, much of which can be harvested with little radiation hazard to agricultural workers if appropriate precautions are taken. If the attack occurs in June, when crops are on the average most vulnerable to fallout radiation, about one-third to one-half of the annual crop yield could be destroyed. Additional crop failure could occur due to increased ultraviolet radiation resulting from depletion of the ozone layer. ... Citizens' Band radios will probably survive in numbers adequate for critical civilian communications e In 1973, there were approximately 4 million CB transmitters in the U.S., and this number may double by 1977. Shipment of food and other crucial supplies wi.11 use primarily trucks and trains, of which at least 60% may be expected to survive because of relocation measures taken during the crisis period. Ships and barges may not be very useful in the first few weeks after the attack because of fallen bridges and destroyed locks and docks, although the vessels themselves may survive because of crisis period action. Oil pipeline terminals will be damaged or destroyed in crucial locations, and most of the refineries will be destroyed. However, about two billion gallons of diesel and about three billion gallons of gasoline would survive in tank storage outside of the major risk areas, which would be more than adequate for the trains and trucks to carry out survival missions during the first few weeks after the attack. At least 20 million gallons of aircraft fuel will survive in tanks at lesser airports, which may be available to light aircraft of the Civil Air Patrol. First priorities should be given for reconnaissance of transportation routes, surveying blockages by debris and fallen bridges, and monitoring radiological hazard with aerial survey meters. Very few large interconnected power plants are expected to be operating in the first few weeks after an attack because of disruption of the transmission grid by blast and fire. It is anticipated that electrical power will not be essential :for basic survival in the first few weeks after the attack and will gradually be restored during the recovery period. </excerpt> (Extra paragraphing added.) [1] http://web.ornl.gov/info/reports/1976/3445600218921.pdf#page=23 http://web.ornl.gov/info/reports/1976/3445600218921.pdf#page...