There is often opposition from neighborhoods in which halfway houses attempt to locate. Social justice literature observes the relationships between halfway house siting and the NIMBY (Not In My Back Yard) phenomenon.[10][11] Some communities/neighborhoods may have the ability to affect political legislation through political solidarity[5] while others may not. Some research stresses that community residents simply feel nervous when halfway houses are sited near them.[2] Others point out that the presence of transitional residences may pose real hazards to community safety.[12] In NIMBY research, it has been suggested that a neighborhood's resistance to placement might be linked to class-based prejudices about ex-offenders and drug addicts.[13] Kraft & Clary (1991) argue that NIMBY responses are sometimes associated with a distrust for government sponsors.