For several years the President (Eisenhower) tended to take security measures a little too lightly for my personal taste. By a kind of wordless proselytizing I had gradually gotten him to change his mind slightly. His conversion became complete, however, when he finally read a book called The Assassins, a terrifying account of seven attempts that have been made on the lives of our Presidents throughout history After Mr. Eisenhower has read that book he agreed readily