From the Rapiscan Secure 1000(tm) Body Scanner manufactured by OSI Systems, Inc.
The ACLU's view on body scanners:
There are some security measures that are extremely intrusive and should only be used when there is good cause to suspect that an individual is a security risk. Low-dose X-ray machines such as - Body Search - are in use in some airports by the Customs Service to search for drugs and other contraband. The ACLU is concerned that these searches have been conducted without good cause and based on profiles that are racially discriminatory. In addition, these machines are capable of projecting an image of a passenger's naked body. We oppose using this as part of a routine screening procedure. Passengers expect privacy underneath their clothing and should not be required to display highly personal details of their bodies such as evidence of mastectomies, colostomy appliances, penile implants, catheter tubes and the size of their breasts or genitals as a pre-requisite to boarding a plane. However, such technology may be used in place of an intrusive search, such as a body cavity search, when there is probable cause sufficient to support such a search.
- From the ACLU's document "Facts On Airport Security"