U.S. REPORT URGES ATOMIC SHELTERS AT 20 BILLION COST; Study Group Would Build Fall-Out Protection, Not Blast-Proof Devices
special (H R Gaither) com urges vast network of fall-out shelters, top-secret rept to ODM and Natl Security Council; holds likelihood of sudden attack renders blast shelters unrealistic; urges post-attack warning system to protect pub from radiation