It is a general principle of law, whatever the community, that a legal entity is responsible for the proximate injuries its acts may cause. The principle is fundamental in the regulation of private entities, and jurisprudence exhibits a clear trend toward the increasing subjection of governments to this same rule of law. In international law, the principle has long been expressed and applied in the doctrine of "State responsibility." There appears to be no cogent reason for suspending the operation of this policy with regard to acts of international organizations (IOs).
Mahnoush H. Arsanjani,
Claims Against International Organizations: Quis custodiet isos custodes,
Yale J. Int'l L.
Available at: http://digitalcommons.law.yale.edu/yjil/vol7/iss2/2