In the near future, your doctor may begin prescribing 'smart pills,' medicines that remain in contact with your hospital, pharmacy or doctor's office and tell your health care providers whether you're sticking to the treatment schedule, along with other medical information. To the supporters of smart pills, this is a life-saving breakthrough. To critics, however, the potential threats of this technology outweigh the benefits. Are smart pills a new way to keep patients healthy longer, or another step in the construction of a biomedical Big Brother?