If conventions are important anymore, and I'm not sure they are, they matter for what is not said more than what is said. The strategic and factual silences show indirectly what the party, candidate and campaign regard as their vulnerabilities -- the people, issues and themes that they know will drive away what's left of the undecided vote. As the Republican National Convention comes to a close, I'm sitting here in the hall compiling a list of the unstated. One is Romneycare. Even though Mitt brags about it selectively on the campaign trail, his health care program in Massachusetts has not received a mention here. The reason is obvious: He's running against Obamacare, which was modeled on his own.