It is a regret that not a few overseas Japanese restaurants are faced with the problem of possible contamination of radiation in imported raw fishes from Japan. Although fishes exported from Japan are safe, some customers of the restaurants doubt if the information are reliable. This is a matter of chain-rumor by which unfounded rumors could develop into a fixed belief that does note accept any opposing opinions and new findings.
What can be done to cope with such unfounded rumors?
Perhaps it would be the turn of the government to activate public relations. In addition, individuals might be able to do some, for example, by providing the information that are available in Japan. Jishuku - "self-restraint" - should be avoided in these circumstances.