Project Prevention (formerly Children Requiring a Caring Kommunity or CRACK) is an American non-profit organization that pays drug addicts cash for volunteering for long-term birth control, including sterilization. Originally based in California and now based in North Carolina, the organization began operating in the United Kingdom in 2010. The organization offers US$300 (£200 in the UK) to each participant. Barbara Harris founded the organization in 1997 after she and her husband adopted the fifth, sixth, seventh, and eighth children of a drug-addicted mother. As of 7 October 2011 the organization had paid 3,848 clients.