Large companies face a dilemma with respect to information about safety problems. Should they seek out such information and attempt to learn from it, or should they suppress this information in order to be able to plead ignorance if something goes wrong? Should they be as open as possible, disclosing whatever information is available and accepting the legal consequences, or should they limit the availability of this information as much as possible in order to be able deny responsibility? This paper seeks to examine what is at stake and to draw some conclusions. It uses the experience of Esso Australia following the explosion at the Longford gas plant in 1998 to illustrate some of the issues.