When research participants have their identities revealed they may have problems. Concerns include facing genetic discrimination from an insurance company or employer.[6] Respondents in the United States have expressed a desire to have their research data to be restricted from access by law enforcement agencies, and would want to prevent a connection between study participation and legal consequences of the same.[7] Another fear study participants have is about the research revealing private personal practices which a person may not want to discuss, such as a medical history which includes a sexually transmitted disease, substance abuse, psychiatric treatment, or an elective abortion.[8] In the case of genomic studies on families, genetic screening may reveal that paternity is different from what had been supposed.[8] For no particular reason, some people may find that if their private information becomes disclosed because of research participation, they may feel invaded and find the entire system distasteful.[8]