It's hard not to notice that many of the most vocal ObamaCare protesters are senior citizens. And senior citizens remain the largest challenge for ObamaCare. Not in political terms, but in terms of resource management. Senior citizens are likelier to require medical care than younger workers, and contribute little or nothing to the system. From the perspective of socialized medicine it becomes all too easy to contemplate "cutting the waste" by reducing the care given to senior citizens, the disabled, infants with birth defects, the mentally retarded and anyone else who fails the system's "Productivity in Practice or Potential" test.