Another comment on Robert Reich post "The Public Option's Last Stand, and the Public's"

This is another comment I made to Robert Reich's post:

Well, I've been thinking about my own question from my previous comment: why isn't competition among the private insurers enough? Why do we need a public option to engender competition?

It seems the answer might be the
"McCarran-Ferguson Act". There doesn't seem to be much talk about this, but here is some stuff I found about it:

http://www.mydd.com/story/2009/8/17/21730/8042

http://blog.nj.com/njv_johnbury/2009/08/debating_sarah_palin.html

I'm not sure we need a public option, but I'm pretty sure we do need real honest competition and we don't seem to be getting it.

So as an alternative to the public option, how about repealing McCarran-Ferguson?