What's up with America's prescription drug market? Why do some of us pay a lot more for our prescriptions than others? How can people on Medicare get the best prices for the medicines they need?To find out, we spoke to Steve Maas, a freelance writer and a retired Boston Globe editor. The Maryland resident is currently a volunteer for the State Health Insurance Assistance Program (or SHIP program), a federal-state partnership that offers counseling on Medicare and Medicaid. In this interview about prescription drug pricing and Medicare Part D, Steve spoke to us on his own behalf and not on behalf of SHIP. This is the first of two episodes.