Why do we need syringe exchange if we can already buy needles in pharmacies in North Carolina?

Paragraph.

What organizations support syringe exchange programs?

The following organizations have endorsed syringe exchange programs.
American Medical Association (AMA) supports needle exchange programs, federal funding for these programs, and deregulation of sryinges (Policy 95.958)
 

Information from the Centers for Disease Control and Prevention (CDC) on syringe exchange programs

US Congress GAO Report on Needle Exchange Programs

World Health Organization (WHO), UNAIDS, UN Office of Drugs and Crime (UNODC) Policy Brief on Provision of Sterile Injecting Equipment to Reduce HIV Transmission

National Science Foundation (NSF), Institute of Medicine (IOM)

National Institutes of Health (NIH) consensus statement

Report from US Surgeon General's Office

American Nurses Association (ANA) Position Statement

Association of Nurses in AIDS Care (ANAC) position statement

American Bar Association (ABA) Policy Letter

National Institute on Drug Abuse (NIDA) states that "research shows that needle-exchange programs can play a significant role in a comprehensive approach to reduce HIV infections."