I would be in favor of doing both. That is, raise the age at which folks start receiving benefits AND raise the ceiling on which the taxes are levied. However… I’d prefer not to raise the ceiling on the portion that employers pay, but rather just raise the ceiling on the portion that individuals pay. What I’m NOT in favor of is raising the actual rates themselves, as that hits the middle class the hardest… the very group that’s fared the worst over the last 30 years.