RED SCARE--"U.S. scientists have been running into trouble getting permission to travel abroad. The most recent publicized case being that of Linus Pauling, head of the Department of Chemistry and Chemical Engineering at the California Institute of Technology. Pauling had planned to attend a conference of the Royal Society of London on protein structure. He said a State Department official told him that the decision had been made 'because of suspicion that I was a Communist and because my anti-Communist statements had not been sufficiently strong.' Pauling had declared that he was not a Communist and had pointed out that his resonance theory of chemical combination had been attacked in the Soviet Union. He has reapplied for a passport and sent a letter to President Truman."