Edmund Haislmaier, senior research fellow, Heritage Foundation
Neera Tanden, president, Center for American Progress
Marilyn Werber Serafini, senior correspondent, Kaiser Health News
Paul Ryan's controversial plan to reshape Medicare has provoked conversation, some of it confusing, about entitlement reform. Traditionally a campaign rallying cry for Democrats, Republicans seem to be putting President Obama on the defensive about Medicare and the new health law.