Others argue, however, that the true purpose of these documents is to be used in criminal activity, including terrorism and money laundering, and that the majority of camouflage passports are bought for those purposes. After the attacks of 9/11, the United States restricted the sale of camouflage passports,[citation needed] although they are still legal to possess in countries such as Australia, New Zealand, and all of the European Union.[citation needed] Laws elsewhere may vary.