Michael Moore: Socialist or Libertarian?

If someone goes railing on about how the terms of contracts are being violated, are they a socialist or a libertarian? I was surprised to see in an interview with Michael Moore about his new movie, "Sicko!", that he was not talking so much about lazy unemployed people as working Joes who thought they were covered. They and/or their employer paid for a service and did not get it. The sanctity of the contract was violated. Who's supposed to defend the contract?

Eh, maybe Moore is a socialist.

But those who are vehemently anti-Moore are not libertarians. To support the status quo is to support a subsidy where you can get away with violating contracts simply by being economically powerful. That is another and more vile kind of socialism.