Well, when I say that notice and notice is enough, to put it that way, it's in the context of the other measures in the bill. If you were focusing on notices sent to consumers as the sole means to control online piracy, that might be a problem. But what the bill does is it creates tools for rights holders to enforce their rights directly against those who are making their works available on the Internet and to try to shut down the enabler sites, which are the ones that are making it possible to do this.
But with respect to whether notice and notice is enough, in a sense, implicit in that statement is that other alternatives are unpalatable. But I'll turn it back to you.