GUESTS: MOHAMMED N. AKHTER, MD, MPH Executive Director, American Public Health Association (Washington, DC) Former Senior Advisor, U.S. Dept. of Health and Human Services in the Agency of Health Care, Policy and Research (1994-1996) Former Washington, DC Commissioner of Public Health RITA J. SIMON Distinguished Professor of Public Affairs and Law, American University, Washington, DC Author, Abortion: Statutes, Policies and Public Attitudes the World Over  Abortions are down by every measure. The number of abortions performed in the U.S. has declined for the past four years, and the overall rate of abortions is at a twenty year low. The number of abortion providers is also declining, although it's not clear which is cause and which is effect. Is the decline due to restrictions of abortion availability, or better family planning thanks to education? Join Ray Suarez and guests for a discussion about changing trends in abortion services... on the next "Talk of the Nation" from NPR News.