Individuals who are still deprived may be the most difficult to reach—geographically, politically, socially and economically. It is time to push to eradicate the remaining deprivations not only in access to health care, education and livelihoods, but also in other dimensions of well-being, such as security, freedom of participation in political life and access to advanced, high-quality services. Some barriers may require technical solutions—greater fiscal resources and development assistance, gains in technology and improved data resources for monitoring and evaluation (see chapter 3). These barriers can be addressed, albeit not easily, through changes in national policies (see chapter 4) and in international systems (see chapter 5).