The Ryan budget plan — endorsed repeatedly by every Republican in Congress from Arkansas — would end Medicare. It would replace the single-payer, government-run insurance plan with something much different. It would cost people more for much, much less. It would become a voucher system from which private insurance companies would profit. You could still call it Medicare. Or you could call it a ham sandwich. But it wouldn't be either as either term has ALWAYS been understood.
How sensitive to this are Republicans? They want to make it impossible to say "Republicans want to end Medicare" in TV ads.
Free speech? That's for corporations and Republicans.
UPDATE: Here's a handy district-by-district map of how the Republicans would devastate Medicare and Medicaid.