Who will write the speeches?

This past week, the New York Times reported that a number of speeches on healthcare reform by lawmakers were ghostwritten by lobbyists. In particular, lobbyists for the biotech company Genentech, a subsidiary of drug company Roche, wrote speeches for different lawmakers that showed up word-for-word the same, or had substantial similarities, in the Congressional Record -- though the Genentech speeches for Republicans were different from the ones for Democrats.
This should be no surprise. Ghostwriting for "key opinion leaders" is a modus operandi of drug companies. Although this has been brought to light many times by many people, Senator Charles Grassley's exposés this year have been notable.
It does, however, raise an interesting question for when, if ever, the U.S. government tries to regulate the pharmaceutical industry's manipulation of the medical literature: Who will write the speeches?