=Profile of Opinion.= Opinion analysis can present a _profile of enemy opinion_. To make a profile, proceed as though assembling a photo-strip map taken by an aerial camera. Take the whole enemy country and divide it into major groups by percentages. Select, particularly, those groups you are interested in addressing. If you have _kamikaze_-minded collaborators, send them in to the enemy country to ask a thousand enemies the same question, selecting the thousand the same way that the total population is made up. If the country is 32% Catholic, the thousand interviewees should include 320 Catholics. If the country is 36% urban and 61% rural (3% unexplained), get 610 of your interviewees from the country. The questions do not have to be asked in precisely the same form, but they should bear on precisely the same issues. When your agents come back you have a poll. If you do not have agents, then use the percentages from reference books, and try to estimate how many definite groups have what specific grievances. You are then in a position to proceed. =Interrogation.= When processing prisoners of war, it is an excellent idea to deal with them for morale intelligence as well as for general and assorted military information. Questions should not aim at what the prisoner thinks he thinks about God, his leader, his country, and so on, but should concern themselves with those things which most interest the prisoner himself. Does his wife write that the babies have enough diapers? How is the mail service? Is he worried about war workers getting his prewar job? How much money is he saving? How is the food? How were the non-coms--did they treat him right? Did he get enough furloughs? Does he think that anybody is making too much money at home? Most men carry over into military services the occupational interests which they had as civilians. A carpenter in uniform, even though he may be a good infantry top sergeant, is still a carpenter, and information can be obtained from him as to the problems of skilled labor, of union members, of the poorer city dwellers, and so on.