It is always useful to know how Paul Krugman stands on any issue. Here he is three months ago, addressing the possibility of a "trigger" system:
At first the insurance lobby’s foot soldiers in Congress tried to shout down the public option with the old slogans: private enterprise good, government bad.
At this point, however, they’re trying to kill the public option in more subtle ways. The most recent ruse is the proposal for a “trigger” — the public option will only become available if private insurers fail to meet certain performance criteria. The idea, of course, is to choose those criteria to ensure that the trigger is never pulled.
And here’s the thing. Without an effective public option, the Obama health care reform will be simply a national version of the health care reform in Massachusetts: a system that is a lot better than nothing but has done little to address the fundamental problem of a fragmented system, and as a result has done little to control rising health care costs.
http://www.nytimes.com/2009/06/05/opinion/05krugman.html